557404 has 12 divisors (see below), whose sum is σ = 980728. Its totient is φ = 277200.

The previous prime is 557377. The next prime is 557423. The reversal of 557404 is 404755.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114 + ... + 1534.

2⁵⁵⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

557404 is a deficient number, since it is larger than the sum of its proper divisors (423324).

557404 is a wasteful number, since it uses less digits than its factorization.

557404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 557404 is about 746.5949370308. The cubic root of 557404 is about 82.2981413339.

It can be divided in two parts, 557 and 404, that added together give a square (961 = 31²).

The spelling of 557404 in words is "five hundred fifty-seven thousand, four hundred four".