408008404 has 12 divisors (see below), whose sum is σ = 715195264. Its totient is φ = 203666904.

The previous prime is 408008389. The next prime is 408008407. The reversal of 408008404 is 404800804.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408008407) 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, 81594 + ... + 86449.

Almost surely, 2^408008404 is an apocalyptic number.

It is an amenable number.

408008404 is a deficient number, since it is larger than the sum of its proper divisors (307186860).

408008404 is a wasteful number, since it uses less digits than its factorization.

408008404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168654 (or 168652 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 408008404 is about 20199.2179056517. The cubic root of 408008404 is about 741.6910462437.

The spelling of 408008404 in words is "four hundred eight million, eight thousand, four hundred four".