12666744 has 48 divisors (see below), whose sum is σ = 35802000. Its totient is φ = 4038144.

The previous prime is 12666727. The next prime is 12666763. The reversal of 12666744 is 44766621.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12666699 and 12666708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2169 + ... + 5480.

It is an arithmetic number, because the mean of its divisors is an integer number (745875).

Almost surely, 2^12666744 is an apocalyptic number.

It is an amenable number.

12666744 is an abundant number, since it is smaller than the sum of its proper divisors (23135256).

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

12666744 is a wasteful number, since it uses less digits than its factorization.

12666744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684 (or 7677 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 12666744 is about 3559.0369483893. The cubic root of 12666744 is about 233.1068296303.

The spelling of 12666744 in words is "twelve million, six hundred sixty-six thousand, seven hundred forty-four".