72074432 has 28 divisors (see below), whose sum is σ = 143292576. Its totient is φ = 35969280.

The previous prime is 72074393. The next prime is 72074447. The reversal of 72074432 is 23447027.

It is a junction number, because it is equal to n+sod(n) for n = 72074395 and 72074404.

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, 64793 + ... + 65895.

It is an arithmetic number, because the mean of its divisors is an integer number (5117592).

Almost surely, 2^72074432 is an apocalyptic number.

It is an amenable number.

72074432 is a deficient number, since it is larger than the sum of its proper divisors (71218144).

72074432 is a wasteful number, since it uses less digits than its factorization.

72074432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 72074432 is about 8489.6661889617. Note that the first 3 decimals coincide. The cubic root of 72074432 is about 416.1600715347.

The spelling of 72074432 in words is "seventy-two million, seventy-four thousand, four hundred thirty-two".