72271324 has 12 divisors (see below), whose sum is σ = 126573664. Its totient is φ = 36107424.

The previous prime is 72271291. The next prime is 72271343. The reversal of 72271324 is 42317227.

It is a junction number, because it is equal to n+sod(n) for n = 72271292 and 72271301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657 + ... + 12040.

Almost surely, 2^72271324 is an apocalyptic number.

It is an amenable number.

72271324 is a deficient number, since it is larger than the sum of its proper divisors (54302340).

72271324 is a wasteful number, since it uses less digits than its factorization.

72271324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14124 (or 14122 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 72271324 is about 8501.2542604018. The cubic root of 72271324 is about 416.5386805487.

The spelling of 72271324 in words is "seventy-two million, two hundred seventy-one thousand, three hundred twenty-four".