7990320 has 120 divisors (see below), whose sum is σ = 26958096. Its totient is φ = 1956864.

The previous prime is 7990319. The next prime is 7990337. The reversal of 7990320 is 230997.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40462 + ... + 40658.

Almost surely, 2^7990320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7990320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13479048).

7990320 is an abundant number, since it is smaller than the sum of its proper divisors (18967776).

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

7990320 is a wasteful number, since it uses less digits than its factorization.

7990320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 7990320 is about 2826.7154083848. The cubic root of 7990320 is about 199.9193007759.

The spelling of 7990320 in words is "seven million, nine hundred ninety thousand, three hundred twenty".