404443998 has 48 divisors (see below), whose sum is σ = 1002867840. Its totient is φ = 115395408.

The previous prime is 404443981. The next prime is 404444021. The reversal of 404443998 is 899344404.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112513 + ... + 116051.

It is an arithmetic number, because the mean of its divisors is an integer number (20893080).

Almost surely, 2^404443998 is an apocalyptic number.

404443998 is an abundant number, since it is smaller than the sum of its proper divisors (598423842).

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

404443998 is a wasteful number, since it uses less digits than its factorization.

404443998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4461 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 404443998 is about 20110.7930723778. The cubic root of 404443998 is about 739.5248946905.

The spelling of 404443998 in words is "four hundred four million, four hundred forty-three thousand, nine hundred ninety-eight".