402406336256 has 36 divisors (see below), whose sum is σ = 804633166512. Its totient is φ = 200854388736.

The previous prime is 402406336229. The next prime is 402406336261. The reversal of 402406336256 is 652633604204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214420 + ... + 1509843.

It is an arithmetic number, because the mean of its divisors is an integer number (22350921292).

Almost surely, 2^402406336256 is an apocalyptic number.

It is an amenable number.

402406336256 is a deficient number, since it is larger than the sum of its proper divisors (402226830256).

402406336256 is an equidigital number, since it uses as much as digits as its factorization.

402406336256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724856 (or 2724842 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 402406336256 in words is "four hundred two billion, four hundred six million, three hundred thirty-six thousand, two hundred fifty-six".