404004516912 has 80 divisors (see below), whose sum is σ = 1159735792000. Its totient is φ = 134657349696.

The previous prime is 404004516907. The next prime is 404004516919. The reversal of 404004516912 is 219615400404.

404004516912 is a `hidden beast` number, since 40 + 400 + 45 + 169 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (404004516919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6769539 + ... + 6828957.

It is an arithmetic number, because the mean of its divisors is an integer number (14496697400).

Almost surely, 2^404004516912 is an apocalyptic number.

It is an amenable number.

404004516912 is an abundant number, since it is smaller than the sum of its proper divisors (755731275088).

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

404004516912 is a wasteful number, since it uses less digits than its factorization.

404004516912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75175 (or 75163 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 404004516912 in words is "four hundred four billion, four million, five hundred sixteen thousand, nine hundred twelve".