72284392 has 16 divisors (see below), whose sum is σ = 135748800. Its totient is φ = 36084720.

The previous prime is 72284383. The next prime is 72284393. The reversal of 72284392 is 29348227.

It is not an unprimeable number, because it can be changed into a prime (72284393) 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, 1584 + ... + 12127.

It is an arithmetic number, because the mean of its divisors is an integer number (8484300).

Almost surely, 2^72284392 is an apocalyptic number.

It is an amenable number.

72284392 is a deficient number, since it is larger than the sum of its proper divisors (63464408).

72284392 is a wasteful number, since it uses less digits than its factorization.

72284392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14376 (or 14372 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 72284392 is about 8502.0228181298. The cubic root of 72284392 is about 416.5637850167.

The spelling of 72284392 in words is "seventy-two million, two hundred eighty-four thousand, three hundred ninety-two".