72268648 has 16 divisors (see below), whose sum is σ = 135594180. Its totient is φ = 36110208.

The previous prime is 72268643. The next prime is 72268661. The reversal of 72268648 is 84686227.

It can be written as a sum of positive squares in 2 ways, for example, as 70257924 + 2010724 = 8382^2 + 1418^2 .

It is not an unprimeable number, because it can be changed into a prime (72268643) 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, 20590 + ... + 23842.

Almost surely, 2^72268648 is an apocalyptic number.

It is an amenable number.

72268648 is a deficient number, since it is larger than the sum of its proper divisors (63325532).

72268648 is a wasteful number, since it uses less digits than its factorization.

72268648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036 (or 6032 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 72268648 is about 8501.0968704044. The cubic root of 72268648 is about 416.5335394074.

The spelling of 72268648 in words is "seventy-two million, two hundred sixty-eight thousand, six hundred forty-eight".