57439368 has 192 divisors, whose sum is σ = 190699200. Its totient is φ = 16166304.

The previous prime is 57439367. The next prime is 57439381. The reversal of 57439368 is 86393475.

Its product of digits (544320) is a multiple of the sum of its prime factors (108).

It is not an unprimeable number, because it can be changed into a prime (57439363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 857271 + ... + 857337.

It is an arithmetic number, because the mean of its divisors is an integer number (993225).

Almost surely, 2^57439368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57439368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95349600).

57439368 is an abundant number, since it is smaller than the sum of its proper divisors (133259832).

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

57439368 is an equidigital number, since it uses as much as digits as its factorization.

57439368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 79 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 57439368 is about 7578.8764338786. The cubic root of 57439368 is about 385.8364184666.

The spelling of 57439368 in words is "fifty-seven million, four hundred thirty-nine thousand, three hundred sixty-eight".