408604406804 has 36 divisors (see below), whose sum is σ = 786766560384. Its totient is φ = 185541642000.

The previous prime is 408604406759. The next prime is 408604406809.

408604406804 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×408604406804² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408604406809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53699 + ... + 905589.

Almost surely, 2^408604406804 is an apocalyptic number.

408604406804 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

408604406804 is a deficient number, since it is larger than the sum of its proper divisors (378162153580).

408604406804 is a wasteful number, since it uses less digits than its factorization.

408604406804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852908 (or 852895 counting only the distinct ones).

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

The spelling of 408604406804 in words is "four hundred eight billion, six hundred four million, four hundred six thousand, eight hundred four".