72796338 has 12 divisors (see below), whose sum is σ = 157725438. Its totient is φ = 24265440.

The previous prime is 72796333. The next prime is 72796349. The reversal of 72796338 is 83369727.

It is a happy number.

72796338 is a `hidden beast` number, since 7 + 2 + 7 + 9 + 633 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 72539289 + 257049 = 8517^2 + 507^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72796293 and 72796302.

It is not an unprimeable number, because it can be changed into a prime (72796333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2022103 + ... + 2022138.

Almost surely, 2^72796338 is an apocalyptic number.

72796338 is an abundant number, since it is smaller than the sum of its proper divisors (84929100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72796338 is a wasteful number, since it uses less digits than its factorization.

72796338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044249 (or 4044246 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 72796338 is about 8532.0770038719. The cubic root of 72796338 is about 417.5448943559.

The spelling of 72796338 in words is "seventy-two million, seven hundred ninety-six thousand, three hundred thirty-eight".