Section 4. Purpose and powers. * * * The association shall have the express power: (i) To act as fiscal agent of the United States when designated for that purpose by the Secretary of the Treasury, under such regulations as the Secretary may prescribe, to perform all such reasonable duties as fiscal agent of the United States as may be required, and to act as agent for any other instrumentality of the United States when designated for that purpose by any such instrumentality; (ii) To sue and be sued, complain and defend in any court of law or equity; (iii) To have a corporate seal, affixed by imprint, facsimile or otherwise; (iv) To appoint officers and agents as its business shall require and allow them suitable compensation; (v) To adopt bylaws not inconsistent with the Constitution or laws of the United States and rules and regulations adopted thereunder and under this Charter; (vi) To raise capital, which shall be unlimited, by accepting payments on savings, demand, or other accounts, as are authorized by rules and regulations made by the Office, and the holders of all such accounts or other accounts as shall, to such extent as may be provided by such rules and regulations, be members of the association and shall have such voting rights and such other rights as are thereby provided; (vii) To issue notes, bonds, debentures, or other obligations, or securities, provided by or under any provision of Federal statute as from time to time is in effect; (viii) To provide for redemption of insured accounts; (ix) To borrow money without limitation and pledge and otherwise encumber any of its assets to secure its debts; (x) To lend and otherwise invest its funds as authorized by statute and the rules and regulations of the Office; (xi) To wind up and dissolve, merge, consolidate, convert, or reorganize; (xii) To purchase, hold, and convey real estate and personalty consistent with its objects, purposes, and powers; (xiii) To mortgage or lease any real estate and personalty and take such property by gift, devise, or bequest; and (xiv) To exercise all powers conferred by law. In addition to the foregoing powers expressly enumerated, this association shall have power to do all things reasonably incident to the accomplishment of its express objects and the performance of its express powers.