404664312 has 32 divisors (see below), whose sum is σ = 1089481680. Its totient is φ = 124512000.

The previous prime is 404664283. The next prime is 404664317. The reversal of 404664312 is 213466404.

It is a self number, because there is not a number n which added to its sum of digits gives 404664312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404664317) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 648189 + ... + 648812.

Almost surely, 2^404664312 is an apocalyptic number.

It is an amenable number.

404664312 is an abundant number, since it is smaller than the sum of its proper divisors (684817368).

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

404664312 is a wasteful number, since it uses less digits than its factorization.

404664312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297023 (or 1297019 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 404664312 is about 20116.2698331475. The cubic root of 404664312 is about 739.6591515249.

The spelling of 404664312 in words is "four hundred four million, six hundred sixty-four thousand, three hundred twelve".