104402406636 has 36 divisors (see below), whose sum is σ = 287897546664. Its totient is φ = 31637092800.

The previous prime is 104402406613. The next prime is 104402406749. The reversal of 104402406636 is 636604204401.

104402406636 is a `hidden beast` number, since 10 + 4 + 4 + 0 + 2 + 4 + 0 + 6 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×104402406636² (a number of 23 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 104402406636.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131820825 + ... + 131821616.

It is an arithmetic number, because the mean of its divisors is an integer number (7997154074).

Almost surely, 2^104402406636 is an apocalyptic number.

It is an amenable number.

104402406636 is an abundant number, since it is smaller than the sum of its proper divisors (183495140028).

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

104402406636 is a wasteful number, since it uses less digits than its factorization.

104402406636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263642462 (or 263642457 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 104402406636 in words is "one hundred four billion, four hundred two million, four hundred six thousand, six hundred thirty-six".