72518332 has 12 divisors (see below), whose sum is σ = 126967456. Its totient is φ = 36241920.

The previous prime is 72518317. The next prime is 72518353. The reversal of 72518332 is 23381527.

It is a junction number, because it is equal to n+sod(n) for n = 72518294 and 72518303.

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, 12028 + ... + 17020.

Almost surely, 2^72518332 is an apocalyptic number.

It is an amenable number.

72518332 is a deficient number, since it is larger than the sum of its proper divisors (54449124).

72518332 is a wasteful number, since it uses less digits than its factorization.

72518332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628 (or 8626 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 72518332 is about 8515.7696070291. The cubic root of 72518332 is about 417.0126877848.

Adding to 72518332 its reverse (23381527), we get a palindrome (95899859).

The spelling of 72518332 in words is "seventy-two million, five hundred eighteen thousand, three hundred thirty-two".