57331368 has 32 divisors (see below), whose sum is σ = 159254400. Its totient is φ = 19110384.

The previous prime is 57331367. The next prime is 57331381. The reversal of 57331368 is 86313375.

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

It is not an unprimeable number, because it can be changed into a prime (57331367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132496 + ... + 132927.

It is an arithmetic number, because the mean of its divisors is an integer number (4976700).

Almost surely, 2^57331368 is an apocalyptic number.

It is an amenable number.

57331368 is an abundant number, since it is smaller than the sum of its proper divisors (101923032).

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

57331368 is a wasteful number, since it uses less digits than its factorization.

57331368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265438 (or 265428 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 57331368 is about 7571.7480148246. The cubic root of 57331368 is about 385.5944446035.

The spelling of 57331368 in words is "fifty-seven million, three hundred thirty-one thousand, three hundred sixty-eight".