7380728 has 16 divisors (see below), whose sum is σ = 14285760. Its totient is φ = 3571200.

The previous prime is 7380719. The next prime is 7380731. The reversal of 7380728 is 8270837.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14633 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (892860).

Almost surely, 2^7380728 is an apocalyptic number.

It is an amenable number.

7380728 is a deficient number, since it is larger than the sum of its proper divisors (6905032).

7380728 is a wasteful number, since it uses less digits than its factorization.

7380728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29798 (or 29794 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 7380728 is about 2716.7495283887. The cubic root of 7380728 is about 194.7002011618.

The spelling of 7380728 in words is "seven million, three hundred eighty thousand, seven hundred twenty-eight".