408734979940 has 48 divisors (see below), whose sum is σ = 981004147200. Its totient is φ = 140131965312.

The previous prime is 408734979923. The next prime is 408734979941. The reversal of 408734979940 is 49979437804.

It is not an unprimeable number, because it can be changed into a prime (408734979941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4739526 + ... + 4824994.

It is an arithmetic number, because the mean of its divisors is an integer number (20437586400).

Almost surely, 2^408734979940 is an apocalyptic number.

It is an amenable number.

408734979940 is an abundant number, since it is smaller than the sum of its proper divisors (572269167260).

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

408734979940 is a wasteful number, since it uses less digits than its factorization.

408734979940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119644 (or 119642 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 408734979940 in words is "four hundred eight billion, seven hundred thirty-four million, nine hundred seventy-nine thousand, nine hundred forty".