231853408 has 24 divisors (see below), whose sum is σ = 457296840. Its totient is φ = 115714560.

The previous prime is 231853399. The next prime is 231853417. The reversal of 231853408 is 804358132.

It is a happy number.

231853408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231853399) and next prime (231853417).

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, 11928 + ... + 24616.

It is an arithmetic number, because the mean of its divisors is an integer number (19054035).

Almost surely, 2^231853408 is an apocalyptic number.

It is an amenable number.

231853408 is a deficient number, since it is larger than the sum of its proper divisors (225443432).

231853408 is a wasteful number, since it uses less digits than its factorization.

231853408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13270 (or 13262 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 231853408 is about 15226.7333331874. The cubic root of 231853408 is about 614.3339191716. Note that the first 3 decimals are identical.

The spelling of 231853408 in words is "two hundred thirty-one million, eight hundred fifty-three thousand, four hundred eight".