400812412488 has 32 divisors (see below), whose sum is σ = 1036583827200. Its totient is φ = 128997098048.

The previous prime is 400812412477. The next prime is 400812412501. The reversal of 400812412488 is 884214218004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287939256 + ... + 287940647.

It is an arithmetic number, because the mean of its divisors is an integer number (32393244600).

Almost surely, 2^400812412488 is an apocalyptic number.

It is an amenable number.

400812412488 is an abundant number, since it is smaller than the sum of its proper divisors (635771414712).

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

400812412488 is a wasteful number, since it uses less digits than its factorization.

400812412488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575879941 (or 575879937 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 42.

The spelling of 400812412488 in words is "four hundred billion, eight hundred twelve million, four hundred twelve thousand, four hundred eighty-eight".