7149888924 has 12 divisors (see below), whose sum is σ = 16683074184. Its totient is φ = 2383296304.

The previous prime is 7149888901. The next prime is 7149888943. The reversal of 7149888924 is 4298889417.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×7149888924² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 297912027 + ... + 297912050.

It is an arithmetic number, because the mean of its divisors is an integer number (1390256182).

Almost surely, 2^7149888924 is an apocalyptic number.

It is an amenable number.

7149888924 is an abundant number, since it is smaller than the sum of its proper divisors (9533185260).

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

7149888924 is a wasteful number, since it uses less digits than its factorization.

7149888924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595824084 (or 595824082 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 60.

The square root of 7149888924 is about 84557.0158177309. The cubic root of 7149888924 is about 1926.4885477802.

The spelling of 7149888924 in words is "seven billion, one hundred forty-nine million, eight hundred eighty-eight thousand, nine hundred twenty-four".