7138924 has 48 divisors (see below), whose sum is σ = 14450688. Its totient is φ = 3060288.

The previous prime is 7138919. The next prime is 7138931. The reversal of 7138924 is 4298317.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7138924.

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, 56149 + ... + 56275.

It is an arithmetic number, because the mean of its divisors is an integer number (301056).

Almost surely, 2^7138924 is an apocalyptic number.

It is an amenable number.

7138924 is an abundant number, since it is smaller than the sum of its proper divisors (7311764).

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

7138924 is a wasteful number, since it uses less digits than its factorization.

7138924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 7138924 is about 2671.8764941516. The cubic root of 7138924 is about 192.5503236060.

The spelling of 7138924 in words is "seven million, one hundred thirty-eight thousand, nine hundred twenty-four".