7920456 has 16 divisors (see below), whose sum is σ = 19801200. Its totient is φ = 2640144.

The previous prime is 7920449. The next prime is 7920457. The reversal of 7920456 is 6540297.

7920456 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7920457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164986 + ... + 165033.

It is an arithmetic number, because the mean of its divisors is an integer number (1237575).

Almost surely, 2^7920456 is an apocalyptic number.

It is an amenable number.

7920456 is an abundant number, since it is smaller than the sum of its proper divisors (11880744).

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

7920456 is a wasteful number, since it uses less digits than its factorization.

7920456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330028 (or 330024 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 7920456 is about 2814.3304710002. The cubic root of 7920456 is about 199.3349241554.

The spelling of 7920456 in words is "seven million, nine hundred twenty thousand, four hundred fifty-six".