72566276 has 24 divisors (see below), whose sum is σ = 128787456. Its totient is φ = 35773920.

The previous prime is 72566237. The next prime is 72566279. The reversal of 72566276 is 67266527.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72566279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106850 + ... + 107526.

It is an arithmetic number, because the mean of its divisors is an integer number (5366144).

Almost surely, 2^72566276 is an apocalyptic number.

It is an amenable number.

72566276 is a deficient number, since it is larger than the sum of its proper divisors (56221180).

72566276 is a wasteful number, since it uses less digits than its factorization.

72566276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 1017 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 72566276 is about 8518.5841546586. The cubic root of 72566276 is about 417.1045673198.

The spelling of 72566276 in words is "seventy-two million, five hundred sixty-six thousand, two hundred seventy-six".