404420808 has 32 divisors (see below), whose sum is σ = 1102966560. Its totient is φ = 122551680.

The previous prime is 404420801. The next prime is 404420813. The reversal of 404420808 is 808024404.

It is not an unprimeable number, because it can be changed into a prime (404420801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765685 + ... + 766212.

It is an arithmetic number, because the mean of its divisors is an integer number (34467705).

Almost surely, 2^404420808 is an apocalyptic number.

It is an amenable number.

404420808 is an abundant number, since it is smaller than the sum of its proper divisors (698545752).

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

404420808 is a wasteful number, since it uses less digits than its factorization.

404420808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531917 (or 1531913 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 404420808 is about 20110.2165080339. The cubic root of 404420808 is about 739.5107601337.

The spelling of 404420808 in words is "four hundred four million, four hundred twenty thousand, eight hundred eight".