7138028 has 12 divisors (see below), whose sum is σ = 13226472. Its totient is φ = 3359040.

The previous prime is 7138009. The next prime is 7138039. The reversal of 7138028 is 8208317.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52418 + ... + 52553.

It is an arithmetic number, because the mean of its divisors is an integer number (1102206).

Almost surely, 2^7138028 is an apocalyptic number.

It is an amenable number.

7138028 is a deficient number, since it is larger than the sum of its proper divisors (6088444).

7138028 is a wasteful number, since it uses less digits than its factorization.

7138028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104992 (or 104990 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 7138028 is about 2671.7088164693. The cubic root of 7138028 is about 192.5422676623.

The spelling of 7138028 in words is "seven million, one hundred thirty-eight thousand, twenty-eight".