404193982 has 16 divisors (see below), whose sum is σ = 617091840. Its totient is φ = 198514008.

The previous prime is 404193971. The next prime is 404193997. The reversal of 404193982 is 289391404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45069 + ... + 53287.

It is an arithmetic number, because the mean of its divisors is an integer number (38568240).

Almost surely, 2^404193982 is an apocalyptic number.

404193982 is a deficient number, since it is larger than the sum of its proper divisors (212897858).

404193982 is a wasteful number, since it uses less digits than its factorization.

404193982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8655.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 404193982 is about 20104.5761457435. The cubic root of 404193982 is about 739.3724787247.

The spelling of 404193982 in words is "four hundred four million, one hundred ninety-three thousand, nine hundred eighty-two".