57865344 has 64 divisors (see below), whose sum is σ = 158695680. Its totient is φ = 18662400.

The previous prime is 57865321. The next prime is 57865351. The reversal of 57865344 is 44356875.

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

It is a junction number, because it is equal to n+sod(n) for n = 57865296 and 57865305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9474 + ... + 14334.

It is an arithmetic number, because the mean of its divisors is an integer number (2479620).

Almost surely, 2^57865344 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 57865344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79347840).

57865344 is an abundant number, since it is smaller than the sum of its proper divisors (100830336).

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

57865344 is a wasteful number, since it uses less digits than its factorization.

57865344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909 (or 4897 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 57865344 is about 7606.9273691813. The cubic root of 57865344 is about 386.7878705781.

The spelling of 57865344 in words is "fifty-seven million, eight hundred sixty-five thousand, three hundred forty-four".