72492544 has 20 divisors (see below), whose sum is σ = 144844524. Its totient is φ = 36246016.

The previous prime is 72492493. The next prime is 72492571. The reversal of 72492544 is 44529427.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70282 + ... + 71305.

Almost surely, 2^72492544 is an apocalyptic number.

It is an amenable number.

72492544 is a deficient number, since it is larger than the sum of its proper divisors (72351980).

72492544 is an equidigital number, since it uses as much as digits as its factorization.

72492544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141605 (or 141589 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 72492544 is about 8514.2553403102. The cubic root of 72492544 is about 416.9632510981.

The spelling of 72492544 in words is "seventy-two million, four hundred ninety-two thousand, five hundred forty-four".