401633808 has 20 divisors (see below), whose sum is σ = 1037554128. Its totient is φ = 133877920.

The previous prime is 401633807. The next prime is 401633819. The reversal of 401633808 is 808336104.

It is a super-2 number, since 2×401633808² = 322619431457161728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401633807) 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 3 ways as a sum of consecutive naturals, for example, 4183638 + ... + 4183733.

Almost surely, 2^401633808 is an apocalyptic number.

401633808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

401633808 is an abundant number, since it is smaller than the sum of its proper divisors (635920320).

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

401633808 is a wasteful number, since it uses less digits than its factorization.

401633808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367382 (or 8367376 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 401633808 is about 20040.8035767032. The cubic root of 401633808 is about 737.8081036899.

The spelling of 401633808 in words is "four hundred one million, six hundred thirty-three thousand, eight hundred eight".