7320328 has 8 divisors (see below), whose sum is σ = 13725630. Its totient is φ = 3660160.

The previous prime is 7320317. The next prime is 7320337. The reversal of 7320328 is 8230237.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6061444 + 1258884 = 2462^2 + 1122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457513 + ... + 457528.

Almost surely, 2^7320328 is an apocalyptic number.

It is an amenable number.

7320328 is a deficient number, since it is larger than the sum of its proper divisors (6405302).

7320328 is a wasteful number, since it uses less digits than its factorization.

7320328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915047 (or 915043 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 7320328 is about 2705.6104671589. The cubic root of 7320328 is about 194.1676377200.

Subtracting 7320328 from its reverse (8230237), we obtain a palindrome (909909).

The spelling of 7320328 in words is "seven million, three hundred twenty thousand, three hundred twenty-eight".