72255748 has 24 divisors (see below), whose sum is σ = 130781952. Its totient is φ = 34910304.

The previous prime is 72255739. The next prime is 72255749. The reversal of 72255748 is 84755227.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72255748.

It is not an unprimeable number, because it can be changed into a prime (72255749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11661 + ... + 16747.

It is an arithmetic number, because the mean of its divisors is an integer number (5449248).

Almost surely, 2^72255748 is an apocalyptic number.

It is an amenable number.

72255748 is a deficient number, since it is larger than the sum of its proper divisors (58526204).

72255748 is a wasteful number, since it uses less digits than its factorization.

72255748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211 (or 5209 counting only the distinct ones).

The product of its digits is 156800, while the sum is 40.

The square root of 72255748 is about 8500.3381109224. The cubic root of 72255748 is about 416.5087540980.

The spelling of 72255748 in words is "seventy-two million, two hundred fifty-five thousand, seven hundred forty-eight".