232581432 has 32 divisors (see below), whose sum is σ = 612057600. Its totient is φ = 73446624.

The previous prime is 232581409. The next prime is 232581457. The reversal of 232581432 is 234185232.

232581432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×232581432² = 108188245022341248, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 232581432.

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, 254568 + ... + 255479.

It is an arithmetic number, because the mean of its divisors is an integer number (19126800).

Almost surely, 2^232581432 is an apocalyptic number.

It is an amenable number.

232581432 is an abundant number, since it is smaller than the sum of its proper divisors (379476168).

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

232581432 is a wasteful number, since it uses less digits than its factorization.

232581432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510075 (or 510071 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 232581432 is about 15250.6207086794. The cubic root of 232581432 is about 614.9762539579.

The spelling of 232581432 in words is "two hundred thirty-two million, five hundred eighty-one thousand, four hundred thirty-two".