12666232 has 16 divisors (see below), whose sum is σ = 23972760. Its totient is φ = 6273504.

The previous prime is 12666211. The next prime is 12666239. The reversal of 12666232 is 23266621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12666232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6543 + ... + 8254.

Almost surely, 2^12666232 is an apocalyptic number.

It is an amenable number.

12666232 is a deficient number, since it is larger than the sum of its proper divisors (11306528).

12666232 is a wasteful number, since it uses less digits than its factorization.

12666232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14910 (or 14906 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 12666232 is about 3558.9650180916. The cubic root of 12666232 is about 233.1036887993.

The spelling of 12666232 in words is "twelve million, six hundred sixty-six thousand, two hundred thirty-two".