72282512 has 10 divisors (see below), whose sum is σ = 140047398. Its totient is φ = 36141248.

The previous prime is 72282503. The next prime is 72282523. The reversal of 72282512 is 21528227.

It can be written as a sum of positive squares in only one way, i.e., 67634176 + 4648336 = 8224^2 + 2156^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2258813 + ... + 2258844.

Almost surely, 2^72282512 is an apocalyptic number.

It is an amenable number.

72282512 is a deficient number, since it is larger than the sum of its proper divisors (67764886).

72282512 is a wasteful number, since it uses less digits than its factorization.

72282512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4517665 (or 4517659 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 72282512 is about 8501.9122554870. The cubic root of 72282512 is about 416.5601736022.

The spelling of 72282512 in words is "seventy-two million, two hundred eighty-two thousand, five hundred twelve".