72385412 has 12 divisors (see below), whose sum is σ = 138190416. Its totient is φ = 32902440.

The previous prime is 72385373. The next prime is 72385429. The reversal of 72385412 is 21458327.

It is an alternating number because its digits alternate between odd and even.

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, 822518 + ... + 822605.

It is an arithmetic number, because the mean of its divisors is an integer number (11515868).

Almost surely, 2^72385412 is an apocalyptic number.

It is an amenable number.

72385412 is a deficient number, since it is larger than the sum of its proper divisors (65805004).

72385412 is a wasteful number, since it uses less digits than its factorization.

72385412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645138 (or 1645136 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 72385412 is about 8507.9616830355. The cubic root of 72385412 is about 416.7577489060.

The spelling of 72385412 in words is "seventy-two million, three hundred eighty-five thousand, four hundred twelve".