232561904 has 40 divisors (see below), whose sum is σ = 493562160. Its totient is φ = 105663488.

The previous prime is 232561897. The next prime is 232561913. The reversal of 232561904 is 409165232.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6854 + ... + 22629.

It is an arithmetic number, because the mean of its divisors is an integer number (12339054).

Almost surely, 2^232561904 is an apocalyptic number.

It is an amenable number.

232561904 is an abundant number, since it is smaller than the sum of its proper divisors (261000256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232561904 is a wasteful number, since it uses less digits than its factorization.

232561904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29537 (or 29531 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 232561904 is about 15249.9804590039. The cubic root of 232561904 is about 614.9590419327.

The spelling of 232561904 in words is "two hundred thirty-two million, five hundred sixty-one thousand, nine hundred four".