408406604804 has 48 divisors (see below), whose sum is σ = 789183507840. Its totient is φ = 183386730240.

The previous prime is 408406604791. The next prime is 408406604833.

408406604804 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743422 + ... + 1963754.

It is an arithmetic number, because the mean of its divisors is an integer number (16441323080).

Almost surely, 2^408406604804 is an apocalyptic number.

408406604804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

408406604804 is a deficient number, since it is larger than the sum of its proper divisors (380776903036).

408406604804 is a wasteful number, since it uses less digits than its factorization.

408406604804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220860 (or 220858 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 44.

The spelling of 408406604804 in words is "four hundred eight billion, four hundred six million, six hundred four thousand, eight hundred four".