231895328 has 24 divisors (see below), whose sum is σ = 521764992. Its totient is φ = 99383616.

The previous prime is 231895291. The next prime is 231895331. The reversal of 231895328 is 823598132.

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, 517400 + ... + 517847.

It is an arithmetic number, because the mean of its divisors is an integer number (21740208).

Almost surely, 2^231895328 is an apocalyptic number.

231895328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231895328 is an abundant number, since it is smaller than the sum of its proper divisors (289869664).

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

231895328 is a wasteful number, since it uses less digits than its factorization.

231895328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035264 (or 1035256 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 231895328 is about 15228.1097973452. The cubic root of 231895328 is about 614.3709415962.

The spelling of 231895328 in words is "two hundred thirty-one million, eight hundred ninety-five thousand, three hundred twenty-eight".