231886368 has 192 divisors, whose sum is σ = 807045120. Its totient is φ = 63334656.

The previous prime is 231886367. The next prime is 231886373. The reversal of 231886368 is 863688132.

231886368 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 8 + 636 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (231886367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138271 + ... + 139937.

It is an arithmetic number, because the mean of its divisors is an integer number (4203360).

Almost surely, 2^231886368 is an apocalyptic number.

231886368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231886368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403522560).

231886368 is an abundant number, since it is smaller than the sum of its proper divisors (575158752).

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

231886368 is a wasteful number, since it uses less digits than its factorization.

231886368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716 (or 1702 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 231886368 is about 15227.8156017204. The cubic root of 231886368 is about 614.3630287812.

The spelling of 231886368 in words is "two hundred thirty-one million, eight hundred eighty-six thousand, three hundred sixty-eight".