404908 has 12 divisors (see below), whose sum is σ = 809872. Its totient is φ = 173520.

The previous prime is 404851. The next prime is 404941. The reversal of 404908 is 809404.

404908 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

404908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7203 + ... + 7258.

2⁴⁰⁴⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

404908 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.

404908 is a wasteful number, since it uses less digits than its factorization.

404908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14472 (or 14470 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 404908 is about 636.3238169360. The cubic root of 404908 is about 73.9807595461.

Subtracting 404908 from its reverse (809404), we obtain a square (404496 = 636²).

The spelling of 404908 in words is "four hundred four thousand, nine hundred eight".