231300928 has 28 divisors (see below), whose sum is σ = 459495652. Its totient is φ = 115522560.

The previous prime is 231300919. The next prime is 231300931. The reversal of 231300928 is 829003132.

231300928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179345664 + 51955264 = 13392^2 + 7208^2 .

It is a super-2 number, since 2×231300928² = 107000238587322368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231300896 and 231300905.

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, 87076 + ... + 89692.

It is an arithmetic number, because the mean of its divisors is an integer number (16410559).

Almost surely, 2^231300928 is an apocalyptic number.

It is an amenable number.

231300928 is a deficient number, since it is larger than the sum of its proper divisors (228194724).

231300928 is a wasteful number, since it uses less digits than its factorization.

231300928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010 (or 4000 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 231300928 is about 15208.5807358872. The cubic root of 231300928 is about 613.8455687185.

The spelling of 231300928 in words is "two hundred thirty-one million, three hundred thousand, nine hundred twenty-eight".