232557432 has 64 divisors (see below), whose sum is σ = 599548800. Its totient is φ = 75116160.

The previous prime is 232557431. The next prime is 232557463. The reversal of 232557432 is 234755232.

It is a junction number, because it is equal to n+sod(n) for n = 232557393 and 232557402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232557431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336207 + ... + 336897.

It is an arithmetic number, because the mean of its divisors is an integer number (9367950).

Almost surely, 2^232557432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232557432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299774400).

232557432 is an abundant number, since it is smaller than the sum of its proper divisors (366991368).

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

232557432 is a wasteful number, since it uses less digits than its factorization.

232557432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1112 counting only the distinct ones).

The product of its digits is 50400, while the sum is 33.

The square root of 232557432 is about 15249.8338351603. The cubic root of 232557432 is about 614.9551001658.

The spelling of 232557432 in words is "two hundred thirty-two million, five hundred fifty-seven thousand, four hundred thirty-two".