72520382 has 12 divisors (see below), whose sum is σ = 119569128. Its totient is φ = 32963700.

The previous prime is 72520379. The next prime is 72520423. The reversal of 72520382 is 28302527.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149594 + ... + 150077.

It is an arithmetic number, because the mean of its divisors is an integer number (9964094).

Almost surely, 2^72520382 is an apocalyptic number.

72520382 is a deficient number, since it is larger than the sum of its proper divisors (47048746).

72520382 is a wasteful number, since it uses less digits than its factorization.

72520382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299695 (or 299684 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 72520382 is about 8515.8899711070. The cubic root of 72520382 is about 417.0166172186.

The spelling of 72520382 in words is "seventy-two million, five hundred twenty thousand, three hundred eighty-two".