72678268 has 24 divisors (see below), whose sum is σ = 144181520. Its totient is φ = 31777920.

The previous prime is 72678251. The next prime is 72678269. The reversal of 72678268 is 86287627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72678269) 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, 35793 + ... + 37768.

Almost surely, 2^72678268 is an apocalyptic number.

It is an amenable number.

72678268 is a deficient number, since it is larger than the sum of its proper divisors (71503252).

72678268 is a wasteful number, since it uses less digits than its factorization.

72678268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73597 (or 73595 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 72678268 is about 8525.1550132534. The cubic root of 72678268 is about 417.3190304164.

The spelling of 72678268 in words is "seventy-two million, six hundred seventy-eight thousand, two hundred sixty-eight".