57073738 has 8 divisors (see below), whose sum is σ = 86105988. Its totient is φ = 28371744.

The previous prime is 57073729. The next prime is 57073781. The reversal of 57073738 is 83737075.

It can be written as a sum of positive squares in 2 ways, for example, as 54361129 + 2712609 = 7373^2 + 1647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57073738.

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, 82131 + ... + 82822.

Almost surely, 2^57073738 is an apocalyptic number.

57073738 is a deficient number, since it is larger than the sum of its proper divisors (29032250).

57073738 is a wasteful number, since it uses less digits than its factorization.

57073738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165128.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 57073738 is about 7554.7162752813. The cubic root of 57073738 is about 385.0159952875.

The spelling of 57073738 in words is "fifty-seven million, seventy-three thousand, seven hundred thirty-eight".