7282320 has 80 divisors (see below), whose sum is σ = 23778240. Its totient is φ = 1838592.

The previous prime is 7282309. The next prime is 7282333. The reversal of 7282320 is 232827.

7282320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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

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, 3762 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (297228).

Almost surely, 2^7282320 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 7282320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11889120).

7282320 is an abundant number, since it is smaller than the sum of its proper divisors (16495920).

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

7282320 is a wasteful number, since it uses less digits than its factorization.

7282320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7282320 is about 2698.5774030033. The cubic root of 7282320 is about 193.8310074023.

The spelling of 7282320 in words is "seven million, two hundred eighty-two thousand, three hundred twenty".