72293296 has 20 divisors (see below), whose sum is σ = 142366384. Its totient is φ = 35553600.

The previous prime is 72293261. The next prime is 72293321. The reversal of 72293296 is 69239227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36060 + ... + 38011.

Almost surely, 2^72293296 is an apocalyptic number.

It is an amenable number.

72293296 is a deficient number, since it is larger than the sum of its proper divisors (70073088).

72293296 is a wasteful number, since it uses less digits than its factorization.

72293296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74140 (or 74134 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 72293296 is about 8502.5464420960. The cubic root of 72293296 is about 416.5808884400.

The spelling of 72293296 in words is "seventy-two million, two hundred ninety-three thousand, two hundred ninety-six".