57102940 has 24 divisors (see below), whose sum is σ = 120071952. Its totient is φ = 22811520.

The previous prime is 57102937. The next prime is 57102953. The reversal of 57102940 is 4920175.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 57102899 and 57102908.

It is a congruent number.

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, 20512 + ... + 23128.

It is an arithmetic number, because the mean of its divisors is an integer number (5002998).

Almost surely, 2^57102940 is an apocalyptic number.

It is an amenable number.

57102940 is an abundant number, since it is smaller than the sum of its proper divisors (62969012).

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

57102940 is a wasteful number, since it uses less digits than its factorization.

57102940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 57102940 is about 7556.6487281069. The cubic root of 57102940 is about 385.0816490686.

The spelling of 57102940 in words is "fifty-seven million, one hundred two thousand, nine hundred forty".