72566392 has 16 divisors (see below), whose sum is σ = 139381200. Its totient is φ = 35398080.

The previous prime is 72566383. The next prime is 72566399. The reversal of 72566392 is 29366527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72566399) 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, 110292 + ... + 110947.

It is an arithmetic number, because the mean of its divisors is an integer number (8711325).

Almost surely, 2^72566392 is an apocalyptic number.

It is an amenable number.

72566392 is a deficient number, since it is larger than the sum of its proper divisors (66814808).

72566392 is a wasteful number, since it uses less digits than its factorization.

72566392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221286 (or 221282 counting only the distinct ones).

The product of its digits is 136080, while the sum is 40.

The square root of 72566392 is about 8518.5909632990. The cubic root of 72566392 is about 417.1047895723.

The spelling of 72566392 in words is "seventy-two million, five hundred sixty-six thousand, three hundred ninety-two".