8001400056 has 32 divisors (see below), whose sum is σ = 21542231760. Its totient is φ = 2461969152.

The previous prime is 8001400021. The next prime is 8001400079. The reversal of 8001400056 is 6500041008.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 8001399999 and 8001400035.

It is a congruent number.

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, 12822445 + ... + 12823068.

Almost surely, 2^8001400056 is an apocalyptic number.

It is an amenable number.

8001400056 is an abundant number, since it is smaller than the sum of its proper divisors (13540831704).

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

8001400056 is a wasteful number, since it uses less digits than its factorization.

8001400056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25645535 (or 25645531 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 8001400056 is about 89450.5453085670. The cubic root of 8001400056 is about 2000.1166645279.

The spelling of 8001400056 in words is "eight billion, one million, four hundred thousand, fifty-six".