404443982 has 16 divisors (see below), whose sum is σ = 621347760. Its totient is φ = 197336832.

The previous prime is 404443981. The next prime is 404444021. The reversal of 404443982 is 289344404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404443981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176798 + ... + 179070.

It is an arithmetic number, because the mean of its divisors is an integer number (38834235).

Almost surely, 2^404443982 is an apocalyptic number.

404443982 is a deficient number, since it is larger than the sum of its proper divisors (216903778).

404443982 is a wasteful number, since it uses less digits than its factorization.

404443982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 404443982 is about 20110.7926745815. The cubic root of 404443982 is about 739.5248849386.

The spelling of 404443982 in words is "four hundred four million, four hundred forty-three thousand, nine hundred eighty-two".