7248943988 has 72 divisors (see below), whose sum is σ = 15054582816. Its totient is φ = 3033771840.

The previous prime is 7248943979. The next prime is 7248944069. The reversal of 7248943988 is 8893498427.

It is a super-2 number, since 2×7248943988² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7248943988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2937131 + ... + 2939597.

It is an arithmetic number, because the mean of its divisors is an integer number (209091428).

Almost surely, 2^7248943988 is an apocalyptic number.

It is an amenable number.

7248943988 is an abundant number, since it is smaller than the sum of its proper divisors (7805638828).

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

7248943988 is a wasteful number, since it uses less digits than its factorization.

7248943988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2973 (or 2960 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 62.

The square root of 7248943988 is about 85140.7304878223. The cubic root of 7248943988 is about 1935.3443458158.

The spelling of 7248943988 in words is "seven billion, two hundred forty-eight million, nine hundred forty-three thousand, nine hundred eighty-eight".