72741524 has 24 divisors (see below), whose sum is σ = 132158208. Its totient is φ = 35007840.

The previous prime is 72741523. The next prime is 72741533. The reversal of 72741524 is 42514727.

It is a congruent number.

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, 8297 + ... + 14639.

It is an arithmetic number, because the mean of its divisors is an integer number (5506592).

Almost surely, 2^72741524 is an apocalyptic number.

It is an amenable number.

72741524 is a deficient number, since it is larger than the sum of its proper divisors (59416684).

72741524 is a wasteful number, since it uses less digits than its factorization.

72741524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455 (or 6453 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 72741524 is about 8528.8641682231. The cubic root of 72741524 is about 417.4400674127.

The spelling of 72741524 in words is "seventy-two million, seven hundred forty-one thousand, five hundred twenty-four".