57358720 has 128 divisors (see below), whose sum is σ = 148716000. Its totient is φ = 21086208.

The previous prime is 57358681. The next prime is 57358733. The reversal of 57358720 is 2785375.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 57358720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 644436 + ... + 644524.

Almost surely, 2^57358720 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 57358720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74358000).

57358720 is an abundant number, since it is smaller than the sum of its proper divisors (91357280).

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

57358720 is a wasteful number, since it uses less digits than its factorization.

57358720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 57358720 is about 7573.5539873959. The cubic root of 57358720 is about 385.6557554404.

The spelling of 57358720 in words is "fifty-seven million, three hundred fifty-eight thousand, seven hundred twenty".