404031164 has 24 divisors (see below), whose sum is σ = 716461200. Its totient is φ = 199337600.

The previous prime is 404031151. The next prime is 404031167. The reversal of 404031164 is 461130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404031167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248747 + ... + 250365.

It is an arithmetic number, because the mean of its divisors is an integer number (29852550).

Almost surely, 2^404031164 is an apocalyptic number.

It is an amenable number.

404031164 is a deficient number, since it is larger than the sum of its proper divisors (312430036).

404031164 is a wasteful number, since it uses less digits than its factorization.

404031164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 404031164 is about 20100.5264607671. The cubic root of 404031164 is about 739.2731870302.

Adding to 404031164 its reverse (461130404), we get a palindrome (865161568).

The spelling of 404031164 in words is "four hundred four million, thirty-one thousand, one hundred sixty-four".