57818940 has 48 divisors (see below), whose sum is σ = 162764448. Its totient is φ = 15335424.

The previous prime is 57818927. The next prime is 57818951. The reversal of 57818940 is 4981875.

It is a junction number, because it is equal to n+sod(n) for n = 57818892 and 57818901.

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, 9084 + ... + 14076.

It is an arithmetic number, because the mean of its divisors is an integer number (3390926).

Almost surely, 2^57818940 is an apocalyptic number.

It is an amenable number.

57818940 is an abundant number, since it is smaller than the sum of its proper divisors (104945508).

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

57818940 is a wasteful number, since it uses less digits than its factorization.

57818940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 57818940 is about 7603.8766428711. The cubic root of 57818940 is about 386.6844505627.

The spelling of 57818940 in words is "fifty-seven million, eight hundred eighteen thousand, nine hundred forty".