12660272 has 20 divisors (see below), whose sum is σ = 24596640. Its totient is φ = 6312768.

The previous prime is 12660229. The next prime is 12660283. The reversal of 12660272 is 27206621.

It is a super-2 number, since 2×12660272² = 320564974227968, which contains 22 as substring.

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, 6554 + ... + 8262.

It is an arithmetic number, because the mean of its divisors is an integer number (1229832).

Almost surely, 2^12660272 is an apocalyptic number.

It is an amenable number.

12660272 is a deficient number, since it is larger than the sum of its proper divisors (11936368).

12660272 is a wasteful number, since it uses less digits than its factorization.

12660272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180 (or 2174 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12660272 is about 3558.1275974872. The cubic root of 12660272 is about 233.0671213353.

Adding to 12660272 its reverse (27206621), we get a palindrome (39866893).

The spelling of 12660272 in words is "twelve million, six hundred sixty thousand, two hundred seventy-two".