72240733324 has 12 divisors (see below), whose sum is σ = 129838075024. Its totient is φ = 35144140464.

The previous prime is 72240733309. The next prime is 72240733339. The reversal of 72240733324 is 42333704227.

It is an interprime number because it is at equal distance from previous prime (72240733309) and next prime (72240733339).

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 244056384 + ... + 244056679.

Almost surely, 2^72240733324 is an apocalyptic number.

72240733324 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

72240733324 is a deficient number, since it is larger than the sum of its proper divisors (57597341700).

72240733324 is a wasteful number, since it uses less digits than its factorization.

72240733324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488113104 (or 488113102 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 37.

The spelling of 72240733324 in words is "seventy-two billion, two hundred forty million, seven hundred thirty-three thousand, three hundred twenty-four".