231879232 has 28 divisors (see below), whose sum is σ = 495532156. Its totient is φ = 107020800.

The previous prime is 231879229. The next prime is 231879251. The reversal of 231879232 is 232978132.

It can be written as a sum of positive squares in 2 ways, for example, as 141705216 + 90174016 = 11904^2 + 9496^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231879191 and 231879200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138519 + ... + 140182.

It is an arithmetic number, because the mean of its divisors is an integer number (17697577).

Almost surely, 2^231879232 is an apocalyptic number.

It is an amenable number.

231879232 is an abundant number, since it is smaller than the sum of its proper divisors (263652924).

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

231879232 is a wasteful number, since it uses less digits than its factorization.

231879232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278726 (or 278716 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 231879232 is about 15227.5812918533. The cubic root of 231879232 is about 614.3567266434.

The spelling of 231879232 in words is "two hundred thirty-one million, eight hundred seventy-nine thousand, two hundred thirty-two".