408408808928 has 48 divisors (see below), whose sum is σ = 888367525920. Its totient is φ = 183836184576.

The previous prime is 408408808921. The next prime is 408408808939. The reversal of 408408808928 is 829808804804.

It is a super-2 number, since 2×408408808928² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408408808921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16308173 + ... + 16333196.

It is an arithmetic number, because the mean of its divisors is an integer number (18507656790).

Almost surely, 2^408408808928 is an apocalyptic number.

It is an amenable number.

408408808928 is an abundant number, since it is smaller than the sum of its proper divisors (479958716992).

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

408408808928 is a wasteful number, since it uses less digits than its factorization.

408408808928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32641419 (or 32641411 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 59.

The spelling of 408408808928 in words is "four hundred eight billion, four hundred eight million, eight hundred eight thousand, nine hundred twenty-eight".