404545957 has 6 divisors (see below), whose sum is σ = 429742898. Its totient is φ = 380748864.

The previous prime is 404545943. The next prime is 404546003. The reversal of 404545957 is 759545404.

It can be written as a sum of positive squares in 3 ways, for example, as 309795201 + 94750756 = 17601^2 + 9734^2 .

It is not a de Polignac number, because 404545957 - 2⁷ = 404545829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404545357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 699618 + ... + 700195.

Almost surely, 2^404545957 is an apocalyptic number.

It is an amenable number.

404545957 is a deficient number, since it is larger than the sum of its proper divisors (25196941).

404545957 is a wasteful number, since it uses less digits than its factorization.

404545957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399847 (or 1399830 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 404545957 is about 20113.3278449888. The cubic root of 404545957 is about 739.5870333994.

The spelling of 404545957 in words is "four hundred four million, five hundred forty-five thousand, nine hundred fifty-seven".