404007036672 has 36 divisors (see below), whose sum is σ = 1075247896520. Its totient is φ = 134669011968.

The previous prime is 404007036661. The next prime is 404007036677. The reversal of 404007036672 is 276630700404.

It is a self number, because there is not a number n which added to its sum of digits gives 404007036672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404007036677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263024647 + ... + 263026182.

Almost surely, 2^404007036672 is an apocalyptic number.

It is an amenable number.

404007036672 is an abundant number, since it is smaller than the sum of its proper divisors (671240859848).

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

404007036672 is an equidigital number, since it uses as much as digits as its factorization.

404007036672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526050848 (or 526050834 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 39.

The spelling of 404007036672 in words is "four hundred four billion, seven million, thirty-six thousand, six hundred seventy-two".