72264524 has 24 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 33956496.

The previous prime is 72264499. The next prime is 72264541. The reversal of 72264524 is 42546227.

It is a super-2 number, since 2×72264524² = 10444322857893152, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 5909 + ... + 13395.

It is an arithmetic number, because the mean of its divisors is an integer number (5591040).

Almost surely, 2^72264524 is an apocalyptic number.

It is an amenable number.

72264524 is a deficient number, since it is larger than the sum of its proper divisors (61920436).

72264524 is a wasteful number, since it uses less digits than its factorization.

72264524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637 (or 7635 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 72264524 is about 8500.8543100091. The cubic root of 72264524 is about 416.5256161145.

The spelling of 72264524 in words is "seventy-two million, two hundred sixty-four thousand, five hundred twenty-four".