7990305456 has 80 divisors (see below), whose sum is σ = 24978115584. Its totient is φ = 2148652032.

The previous prime is 7990305419. The next prime is 7990305461. The reversal of 7990305456 is 6545030997.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693720 + ... + 705143.

Almost surely, 2^7990305456 is an apocalyptic number.

It is an amenable number.

7990305456 is an abundant number, since it is smaller than the sum of its proper divisors (16987810128).

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

7990305456 is a wasteful number, since it uses less digits than its factorization.

7990305456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398898 (or 1398892 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 48.

The square root of 7990305456 is about 89388.5085231877. The cubic root of 7990305456 is about 1999.1917947795.

The spelling of 7990305456 in words is "seven billion, nine hundred ninety million, three hundred five thousand, four hundred fifty-six".