72465412 has 6 divisors (see below), whose sum is σ = 126814478. Its totient is φ = 36232704.

The previous prime is 72465397. The next prime is 72465413. The reversal of 72465412 is 21456427.

It can be written as a sum of positive squares in only one way, i.e., 42719296 + 29746116 = 6536^2 + 5454^2 .

It is not an unprimeable number, because it can be changed into a prime (72465413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9058173 + ... + 9058180.

Almost surely, 2^72465412 is an apocalyptic number.

It is an amenable number.

72465412 is a deficient number, since it is larger than the sum of its proper divisors (54349066).

72465412 is a wasteful number, since it uses less digits than its factorization.

72465412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18116357 (or 18116355 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 72465412 is about 8512.6618633657. The cubic root of 72465412 is about 416.9112252483.

The spelling of 72465412 in words is "seventy-two million, four hundred sixty-five thousand, four hundred twelve".