400832808 has 32 divisors (see below), whose sum is σ = 1005302400. Its totient is φ = 133181568.

The previous prime is 400832801. The next prime is 400832857. The reversal of 400832808 is 808238004.

It is not an unprimeable number, because it can be changed into a prime (400832801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19168 + ... + 34191.

It is an arithmetic number, because the mean of its divisors is an integer number (31415700).

Almost surely, 2^400832808 is an apocalyptic number.

It is an amenable number.

400832808 is an abundant number, since it is smaller than the sum of its proper divisors (604469592).

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

400832808 is a wasteful number, since it uses less digits than its factorization.

400832808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53681 (or 53677 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 400832808 is about 20020.8093742486. The cubic root of 400832808 is about 737.3172937428.

The spelling of 400832808 in words is "four hundred million, eight hundred thirty-two thousand, eight hundred eight".