557641404 has 18 divisors (see below), whose sum is σ = 1409593640. Its totient is φ = 185880456.

The previous prime is 557641373. The next prime is 557641411. The reversal of 557641404 is 404146755.

557641404 is a `hidden beast` number, since 5 + 5 + 7 + 641 + 4 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×557641404³ (a number of 27 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 15490039 = 557641404 / (5 + 5 + 7 + 6 + 4 + 1 + 4 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7744984 + ... + 7745055.

Almost surely, 2^557641404 is an apocalyptic number.

It is an amenable number.

557641404 is an abundant number, since it is smaller than the sum of its proper divisors (851952236).

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

557641404 is a wasteful number, since it uses less digits than its factorization.

557641404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15490049 (or 15490044 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 557641404 is about 23614.4321125874. The cubic root of 557641404 is about 823.0982354576.

The spelling of 557641404 in words is "five hundred fifty-seven million, six hundred forty-one thousand, four hundred four".