400420242400056 has 32 divisors (see below), whose sum is σ = 1001054946560640. Its totient is φ = 133472835391968.

The previous prime is 400420242400007. The next prime is 400420242400069. The reversal of 400420242400056 is 650004242024004.

It is a congruent number.

It is an unprimeable number.

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, 30502846 + ... + 41608461.

It is an arithmetic number, because the mean of its divisors is an integer number (31282967080020).

Almost surely, 2^{400420242400056} is an apocalyptic number.

It is an amenable number.

400420242400056 is an abundant number, since it is smaller than the sum of its proper divisors (600634704160584).

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

400420242400056 is a wasteful number, since it uses less digits than its factorization.

400420242400056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72342683 (or 72342679 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 400420242400056 in words is "four hundred trillion, four hundred twenty billion, two hundred forty-two million, four hundred thousand, fifty-six".