12644200 has 48 divisors (see below), whose sum is σ = 29640960. Its totient is φ = 5016000.

The previous prime is 12644197. The next prime is 12644201. The reversal of 12644200 is 244621.

12644200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12644201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38035 + ... + 38365.

It is an arithmetic number, because the mean of its divisors is an integer number (617520).

Almost surely, 2^12644200 is an apocalyptic number.

12644200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12644200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14820480).

12644200 is an abundant number, since it is smaller than the sum of its proper divisors (16996760).

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

12644200 is a wasteful number, since it uses less digits than its factorization.

12644200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12644200 is about 3555.8683890155. The cubic root of 12644200 is about 232.9684546559.

Adding to 12644200 its reverse (244621), we get a palindrome (12888821).

The spelling of 12644200 in words is "twelve million, six hundred forty-four thousand, two hundred".