72292544 has 14 divisors (see below), whose sum is σ = 143455644. Its totient is φ = 36146240.

The previous prime is 72292543. The next prime is 72292547. The reversal of 72292544 is 44529227.

It is not an unprimeable number, because it can be changed into a prime (72292543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564722 + ... + 564849.

Almost surely, 2^72292544 is an apocalyptic number.

It is an amenable number.

72292544 is a deficient number, since it is larger than the sum of its proper divisors (71163100).

72292544 is a wasteful number, since it uses less digits than its factorization.

72292544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129583 (or 1129573 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 72292544 is about 8502.5022199350. The cubic root of 72292544 is about 416.5794440003.

The spelling of 72292544 in words is "seventy-two million, two hundred ninety-two thousand, five hundred forty-four".