12644112 has 80 divisors (see below), whose sum is σ = 36747648. Its totient is φ = 3717120.

The previous prime is 12644077. The next prime is 12644119. The reversal of 12644112 is 21144621.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12644119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13912 + ... + 14792.

Almost surely, 2^12644112 is an apocalyptic number.

12644112 is a gapful number since it is divisible by the number (12) 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 12644112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18373824).

12644112 is an abundant number, since it is smaller than the sum of its proper divisors (24103536).

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

12644112 is a wasteful number, since it uses less digits than its factorization.

12644112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 922 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 12644112 is about 3555.8560150827. The cubic root of 12644112 is about 232.9679141902.

Adding to 12644112 its reverse (21144621), we get a palindrome (33788733).

The spelling of 12644112 in words is "twelve million, six hundred forty-four thousand, one hundred twelve".