404686972 has 24 divisors (see below), whose sum is σ = 750553776. Its totient is φ = 190265088.

The previous prime is 404686969. The next prime is 404686979. The reversal of 404686972 is 279686404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404686979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98838 + ... + 102850.

It is an arithmetic number, because the mean of its divisors is an integer number (31273074).

Almost surely, 2^404686972 is an apocalyptic number.

It is an amenable number.

404686972 is a deficient number, since it is larger than the sum of its proper divisors (345866804).

404686972 is a wasteful number, since it uses less digits than its factorization.

404686972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517 (or 5515 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 404686972 is about 20116.8330509551. The cubic root of 404686972 is about 739.6729575060.

The spelling of 404686972 in words is "four hundred four million, six hundred eighty-six thousand, nine hundred seventy-two".