57838540 has 12 divisors (see below), whose sum is σ = 121460976. Its totient is φ = 23135408.

The previous prime is 57838513. The next prime is 57838567. The reversal of 57838540 is 4583875.

It is an interprime number because it is at equal distance from previous prime (57838513) and next prime (57838567).

It is a junction number, because it is equal to n+sod(n) for n = 57838493 and 57838502.

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, 1445944 + ... + 1445983.

It is an arithmetic number, because the mean of its divisors is an integer number (10121748).

Almost surely, 2^57838540 is an apocalyptic number.

It is an amenable number.

57838540 is an abundant number, since it is smaller than the sum of its proper divisors (63622436).

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

57838540 is a wasteful number, since it uses less digits than its factorization.

57838540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891936 (or 2891934 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 57838540 is about 7605.1653499447. The cubic root of 57838540 is about 386.7281395856.

The spelling of 57838540 in words is "fifty-seven million, eight hundred thirty-eight thousand, five hundred forty".