72265624 has 16 divisors (see below), whose sum is σ = 136815120. Its totient is φ = 35781600.

The previous prime is 72265621. The next prime is 72265643. The reversal of 72265624 is 42656227.

It is a self number, because there is not a number n which added to its sum of digits gives 72265624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72265621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43027 + ... + 44674.

It is an arithmetic number, because the mean of its divisors is an integer number (8550945).

Almost surely, 2^72265624 is an apocalyptic number.

It is an amenable number.

72265624 is a deficient number, since it is larger than the sum of its proper divisors (64549496).

72265624 is a wasteful number, since it uses less digits than its factorization.

72265624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87810 (or 87806 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 72265624 is about 8500.9190091425. The cubic root of 72265624 is about 416.5277295345.

The spelling of 72265624 in words is "seventy-two million, two hundred sixty-five thousand, six hundred twenty-four".