231455400 has 96 divisors (see below), whose sum is σ = 782762400. Its totient is φ = 56108800.

The previous prime is 231455381. The next prime is 231455423. The reversal of 231455400 is 4554132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10935 + ... + 24134.

It is an arithmetic number, because the mean of its divisors is an integer number (8153775).

Almost surely, 2^231455400 is an apocalyptic number.

231455400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231455400 is an abundant number, since it is smaller than the sum of its proper divisors (551307000).

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

231455400 is a wasteful number, since it uses less digits than its factorization.

231455400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35099 (or 35090 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 231455400 is about 15213.6583371653. The cubic root of 231455400 is about 613.9821885074.

The spelling of 231455400 in words is "two hundred thirty-one million, four hundred fifty-five thousand, four hundred".