231324828 has 24 divisors (see below), whose sum is σ = 616866432. Its totient is φ = 66092784.

The previous prime is 231324799. The next prime is 231324833. The reversal of 231324828 is 828423132.

It is a super-2 number, since 2×231324828² = 107022352098459168, which contains 22 as substring.

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, 1376850 + ... + 1377017.

It is an arithmetic number, because the mean of its divisors is an integer number (25702768).

Almost surely, 2^231324828 is an apocalyptic number.

231324828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231324828 is an abundant number, since it is smaller than the sum of its proper divisors (385541604).

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

231324828 is a wasteful number, since it uses less digits than its factorization.

231324828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753881 (or 2753879 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 231324828 is about 15209.3664562335. The cubic root of 231324828 is about 613.8667105905.

The spelling of 231324828 in words is "two hundred thirty-one million, three hundred twenty-four thousand, eight hundred twenty-eight".