57740780 has 12 divisors (see below), whose sum is σ = 121255680. Its totient is φ = 23096304.

The previous prime is 57740777. The next prime is 57740807. The reversal of 57740780 is 8704775.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443500 + ... + 1443539.

It is an arithmetic number, because the mean of its divisors is an integer number (10104640).

Almost surely, 2^57740780 is an apocalyptic number.

It is an amenable number.

57740780 is an abundant number, since it is smaller than the sum of its proper divisors (63514900).

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

57740780 is a wasteful number, since it uses less digits than its factorization.

57740780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887048 (or 2887046 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 57740780 is about 7598.7354211079. The cubic root of 57740780 is about 386.5101311813.

The spelling of 57740780 in words is "fifty-seven million, seven hundred forty thousand, seven hundred eighty".