72231076 has 24 divisors (see below), whose sum is σ = 128976120. Its totient is φ = 35385600.

The previous prime is 72231041. The next prime is 72231097. The reversal of 72231076 is 67013227.

It can be written as a sum of positive squares in 4 ways, for example, as 11764900 + 60466176 = 3430^2 + 7776^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94536 + ... + 95296.

It is an arithmetic number, because the mean of its divisors is an integer number (5374005).

Almost surely, 2^72231076 is an apocalyptic number.

It is an amenable number.

72231076 is a deficient number, since it is larger than the sum of its proper divisors (56745044).

72231076 is a wasteful number, since it uses less digits than its factorization.

72231076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72231076 is about 8498.8867506280. The cubic root of 72231076 is about 416.4613425352.

The spelling of 72231076 in words is "seventy-two million, two hundred thirty-one thousand, seventy-six".