232387728 has 40 divisors (see below), whose sum is σ = 601547808. Its totient is φ = 77306112.

The previous prime is 232387717. The next prime is 232387733. The reversal of 232387728 is 827783232.

232387728 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 2×232387728² = 108008112250003968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 232387728.

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, 20476 + ... + 29732.

Almost surely, 2^232387728 is an apocalyptic number.

It is an amenable number.

232387728 is an abundant number, since it is smaller than the sum of its proper divisors (369160080).

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

232387728 is a wasteful number, since it uses less digits than its factorization.

232387728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791 (or 9785 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 232387728 is about 15244.2686935123. The cubic root of 232387728 is about 614.8054801563.

The spelling of 232387728 in words is "two hundred thirty-two million, three hundred eighty-seven thousand, seven hundred twenty-eight".