72448972 has 6 divisors (see below), whose sum is σ = 126785708. Its totient is φ = 36224484.

The previous prime is 72448969. The next prime is 72448993. The reversal of 72448972 is 27984427.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056118 + ... + 9056125.

Almost surely, 2^72448972 is an apocalyptic number.

It is an amenable number.

72448972 is a deficient number, since it is larger than the sum of its proper divisors (54336736).

72448972 is a wasteful number, since it uses less digits than its factorization.

72448972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18112247 (or 18112245 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 72448972 is about 8511.6961881872. The cubic root of 72448972 is about 416.8796950846.

The spelling of 72448972 in words is "seventy-two million, four hundred forty-eight thousand, nine hundred seventy-two".