404630996 has 48 divisors (see below), whose sum is σ = 921231360. Its totient is φ = 150791520.

The previous prime is 404630987. The next prime is 404631013. The reversal of 404630996 is 699036404.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21476 + ... + 35643.

It is an arithmetic number, because the mean of its divisors is an integer number (19192320).

Almost surely, 2^404630996 is an apocalyptic number.

404630996 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

404630996 is an abundant number, since it is smaller than the sum of its proper divisors (516600364).

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

404630996 is a wasteful number, since it uses less digits than its factorization.

404630996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57164 (or 57162 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 404630996 is about 20115.4417301734. The cubic root of 404630996 is about 739.6388522630.

The spelling of 404630996 in words is "four hundred four million, six hundred thirty thousand, nine hundred ninety-six".