408505804 has 12 divisors (see below), whose sum is σ = 817011664. Its totient is φ = 175073904.

The previous prime is 408505781. The next prime is 408505819.

408505804 is nontrivially palindromic in base 10.

408505804 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 408505804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7294719 + ... + 7294774.

Almost surely, 2^408505804 is an apocalyptic number.

It is an amenable number.

408505804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

408505804 is a wasteful number, since it uses less digits than its factorization.

408505804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14589504 (or 14589502 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 408505804 is about 20211.5265133537. The cubic root of 408505804 is about 741.9923205227.

The spelling of 408505804 in words is "four hundred eight million, five hundred five thousand, eight hundred four".