261296732 has 12 divisors (see below), whose sum is σ = 484167600. Its totient is φ = 122963136.

The previous prime is 261296719. The next prime is 261296741. The reversal of 261296732 is 237692162.

261296732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1921232 + ... + 1921367.

It is an arithmetic number, because the mean of its divisors is an integer number (40347300).

Almost surely, 2^261296732 is an apocalyptic number.

It is an amenable number.

261296732 is a deficient number, since it is larger than the sum of its proper divisors (222870868).

261296732 is a wasteful number, since it uses less digits than its factorization.

261296732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842620 (or 3842618 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 261296732 is about 16164.6754375088. The cubic root of 261296732 is about 639.3097473530.

The spelling of 261296732 in words is "two hundred sixty-one million, two hundred ninety-six thousand, seven hundred thirty-two".