72745952 has 12 divisors (see below), whose sum is σ = 143218656. Its totient is φ = 36372960.

The previous prime is 72745951. The next prime is 72745963. The reversal of 72745952 is 25954727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72745951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136624 + ... + 1136687.

It is an arithmetic number, because the mean of its divisors is an integer number (11934888).

Almost surely, 2^72745952 is an apocalyptic number.

It is an amenable number.

72745952 is a deficient number, since it is larger than the sum of its proper divisors (70472704).

72745952 is a wasteful number, since it uses less digits than its factorization.

72745952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273321 (or 2273313 counting only the distinct ones).

The product of its digits is 176400, while the sum is 41.

The square root of 72745952 is about 8529.1237533524. The cubic root of 72745952 is about 417.4485375272.

The spelling of 72745952 in words is "seventy-two million, seven hundred forty-five thousand, nine hundred fifty-two".