72741522 has 16 divisors (see below), whose sum is σ = 166266432. Its totient is φ = 20783280.

The previous prime is 72741511. The next prime is 72741523. The reversal of 72741522 is 22514727.

It is a self number, because there is not a number n which added to its sum of digits gives 72741522.

It is not an unprimeable number, because it can be changed into a prime (72741523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 865929 + ... + 866012.

It is an arithmetic number, because the mean of its divisors is an integer number (10391652).

Almost surely, 2^72741522 is an apocalyptic number.

72741522 is an abundant number, since it is smaller than the sum of its proper divisors (93524910).

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

72741522 is a wasteful number, since it uses less digits than its factorization.

72741522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731953.

The product of its digits is 7840, while the sum is 30.

The square root of 72741522 is about 8528.8640509742. The cubic root of 72741522 is about 417.4400635869.

The spelling of 72741522 in words is "seventy-two million, seven hundred forty-one thousand, five hundred twenty-two".