231642808 has 16 divisors (see below), whose sum is σ = 434544480. Its totient is φ = 115764288.

The previous prime is 231642787. The next prime is 231642841. The reversal of 231642808 is 808246132.

231642808 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 13660 + ... + 25492.

It is an arithmetic number, because the mean of its divisors is an integer number (27159030).

Almost surely, 2^231642808 is an apocalyptic number.

It is an amenable number.

231642808 is a deficient number, since it is larger than the sum of its proper divisors (202901672).

231642808 is a wasteful number, since it uses less digits than its factorization.

231642808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14286 (or 14282 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 231642808 is about 15219.8162932409. The cubic root of 231642808 is about 614.1478563238.

The spelling of 231642808 in words is "two hundred thirty-one million, six hundred forty-two thousand, eight hundred eight".