404915944 has 16 divisors (see below), whose sum is σ = 760809600. Its totient is φ = 202033392.

The previous prime is 404915939. The next prime is 404915977. The reversal of 404915944 is 449519404.

It is a super-2 number, since 2×404915944² = 327913843410822272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404915897 and 404915906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49002 + ... + 56665.

It is an arithmetic number, because the mean of its divisors is an integer number (47550600).

Almost surely, 2^404915944 is an apocalyptic number.

It is an amenable number.

404915944 is a deficient number, since it is larger than the sum of its proper divisors (355893656).

404915944 is a wasteful number, since it uses less digits than its factorization.

404915944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106152 (or 106148 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 404915944 is about 20122.5233010177. The cubic root of 404915944 is about 739.8124335917.

The spelling of 404915944 in words is "four hundred four million, nine hundred fifteen thousand, nine hundred forty-four".