231168384 has 64 divisors (see below), whose sum is σ = 682278000. Its totient is φ = 77054976.

The previous prime is 231168349. The next prime is 231168391. The reversal of 231168384 is 483861132.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×231168384² = 106877643522342912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29989 + ... + 36900.

Almost surely, 2^231168384 is an apocalyptic number.

231168384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231168384 is an abundant number, since it is smaller than the sum of its proper divisors (451109616).

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

231168384 is an equidigital number, since it uses as much as digits as its factorization.

231168384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66912 (or 66894 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 231168384 is about 15204.2225713780. Note that the first 3 decimals coincide. The cubic root of 231168384 is about 613.7282942314.

The spelling of 231168384 in words is "two hundred thirty-one million, one hundred sixty-eight thousand, three hundred eighty-four".