12644368 has 20 divisors (see below), whose sum is σ = 26725968. Its totient is φ = 5747360.

The previous prime is 12644353. The next prime is 12644371. The reversal of 12644368 is 86344621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35746 + ... + 36097.

Almost surely, 2^12644368 is an apocalyptic number.

It is an amenable number.

12644368 is an abundant number, since it is smaller than the sum of its proper divisors (14081600).

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

12644368 is a wasteful number, since it uses less digits than its factorization.

12644368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71862 (or 71856 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 12644368 is about 3555.8920118586. The cubic root of 12644368 is about 232.9694864473.

Adding to 12644368 its reverse (86344621), we get a palindrome (98988989).

The spelling of 12644368 in words is "twelve million, six hundred forty-four thousand, three hundred sixty-eight".