57977340 has 36 divisors (see below), whose sum is σ = 162501864. Its totient is φ = 15444896.

The previous prime is 57977329. The next prime is 57977357. The reversal of 57977340 is 4377975.

It is a super-2 number, since 2×57977340² = 6722743906951200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57977292 and 57977301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58489 + ... + 59471.

Almost surely, 2^57977340 is an apocalyptic number.

It is an amenable number.

57977340 is an abundant number, since it is smaller than the sum of its proper divisors (104524524).

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

57977340 is an equidigital number, since it uses as much as digits as its factorization.

57977340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 57977340 is about 7614.2852586438. The cubic root of 57977340 is about 387.0372471144.

The spelling of 57977340 in words is "fifty-seven million, nine hundred seventy-seven thousand, three hundred forty".