72286384 has 20 divisors (see below), whose sum is σ = 140357584. Its totient is φ = 36065088.

The previous prime is 72286381. The next prime is 72286391. The reversal of 72286384 is 48368227.

It is not an unprimeable number, because it can be changed into a prime (72286381) 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, 3154 + ... + 12430.

Almost surely, 2^72286384 is an apocalyptic number.

It is an amenable number.

72286384 is a deficient number, since it is larger than the sum of its proper divisors (68071200).

72286384 is a wasteful number, since it uses less digits than its factorization.

72286384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772 (or 9766 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 72286384 is about 8502.1399659145. The cubic root of 72286384 is about 416.5676115110.

The spelling of 72286384 in words is "seventy-two million, two hundred eighty-six thousand, three hundred eighty-four".