57790404 has 81 divisors (see below), whose sum is σ = 170875341. Its totient is φ = 16420320.

The previous prime is 57790393. The next prime is 57790423. The reversal of 57790404 is 40409775.

It is a happy number.

The square root of 57790404 is 7602.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 636804 + 57153600 = 798^2 + 7560^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 319194 + ... + 319374.

Almost surely, 2^57790404 is an apocalyptic number.

57790404 is the 7602-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57790404

57790404 is an abundant number, since it is smaller than the sum of its proper divisors (113084937).

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

57790404 is a wasteful number, since it uses less digits than its factorization.

57790404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The cubic root of 57790404 is about 386.6208252564.

Multiplying 57790404 by its sum of digits (36), we get a square (2080454544 = 45612²).

57790404 divided by its sum of digits (36) gives a square (1605289 = 1267²).

The spelling of 57790404 in words is "fifty-seven million, seven hundred ninety thousand, four hundred four".