231630808 has 16 divisors (see below), whose sum is σ = 434511000. Its totient is φ = 115761216.

The previous prime is 231630803. The next prime is 231630871. The reversal of 231630808 is 808036132.

It is a self number, because there is not a number n which added to its sum of digits gives 231630808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231630803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15828 + ... + 26716.

Almost surely, 2^231630808 is an apocalyptic number.

It is an amenable number.

231630808 is a deficient number, since it is larger than the sum of its proper divisors (202880192).

231630808 is a wasteful number, since it uses less digits than its factorization.

231630808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13554 (or 13550 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 231630808 is about 15219.4220652428. The cubic root of 231630808 is about 614.1372510567.

It can be divided in two parts, 2316 and 30808, that added together give a square (33124 = 182²).

The spelling of 231630808 in words is "two hundred thirty-one million, six hundred thirty thousand, eight hundred eight".