72393268 has 24 divisors (see below), whose sum is σ = 133852320. Its totient is φ = 34164000.

The previous prime is 72393263. The next prime is 72393271. The reversal of 72393268 is 86239327.

It is a self number, because there is not a number n which added to its sum of digits gives 72393268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72393263) 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, 20643 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (5577180).

Almost surely, 2^72393268 is an apocalyptic number.

It is an amenable number.

72393268 is a deficient number, since it is larger than the sum of its proper divisors (61459052).

72393268 is a wasteful number, since it uses less digits than its factorization.

72393268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567 (or 3565 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 72393268 is about 8508.4233557105. The cubic root of 72393268 is about 416.7728252883.

The spelling of 72393268 in words is "seventy-two million, three hundred ninety-three thousand, two hundred sixty-eight".