72112276 has 12 divisors (see below), whose sum is σ = 129274740. Its totient is φ = 35176640.

The previous prime is 72112273. The next prime is 72112289. The reversal of 72112276 is 67221127.

It can be written as a sum of positive squares in 2 ways, for example, as 10112400 + 61999876 = 3180^2 + 7874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72112273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219691 + ... + 220018.

It is an arithmetic number, because the mean of its divisors is an integer number (10772895).

Almost surely, 2^72112276 is an apocalyptic number.

It is an amenable number.

72112276 is a deficient number, since it is larger than the sum of its proper divisors (57162464).

72112276 is a wasteful number, since it uses less digits than its factorization.

72112276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439754 (or 439752 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 72112276 is about 8491.8947237940. The cubic root of 72112276 is about 416.2328962783.

The spelling of 72112276 in words is "seventy-two million, one hundred twelve thousand, two hundred seventy-six".