72074732 has 12 divisors (see below), whose sum is σ = 131614896. Its totient is φ = 34470480.

The previous prime is 72074729. The next prime is 72074749. The reversal of 72074732 is 23747027.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391619 + ... + 391802.

It is an arithmetic number, because the mean of its divisors is an integer number (10967908).

Almost surely, 2^72074732 is an apocalyptic number.

It is an amenable number.

72074732 is a deficient number, since it is larger than the sum of its proper divisors (59540164).

72074732 is a wasteful number, since it uses less digits than its factorization.

72074732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783448 (or 783446 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 72074732 is about 8489.6838574826. The cubic root of 72074732 is about 416.1606489371.

The spelling of 72074732 in words is "seventy-two million, seventy-four thousand, seven hundred thirty-two".