57427680 has 96 divisors (see below), whose sum is σ = 182171808. Its totient is φ = 15206400.

The previous prime is 57427651. The next prime is 57427697. The reversal of 57427680 is 8672475.

It is a tau number, because it is divible by the number of its divisors (96).

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, 86550 + ... + 87210.

It is an arithmetic number, because the mean of its divisors is an integer number (1897623).

Almost surely, 2^57427680 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 57427680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91085904).

57427680 is an abundant number, since it is smaller than the sum of its proper divisors (124744128).

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

57427680 is a wasteful number, since it uses less digits than its factorization.

57427680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 57427680 is about 7578.1053040981. The cubic root of 57427680 is about 385.8102461616.

The spelling of 57427680 in words is "fifty-seven million, four hundred twenty-seven thousand, six hundred eighty".