12444636 has 12 divisors (see below), whose sum is σ = 29037512. Its totient is φ = 4148208.

The previous prime is 12444631. The next prime is 12444637. The reversal of 12444636 is 63644421.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444631) 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, 518515 + ... + 518538.

Almost surely, 2^12444636 is an apocalyptic number.

It is an amenable number.

12444636 is an abundant number, since it is smaller than the sum of its proper divisors (16592876).

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

12444636 is a wasteful number, since it uses less digits than its factorization.

12444636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037060 (or 1037058 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 12444636 is about 3527.6955650963. The cubic root of 12444636 is about 231.7362986748.

The spelling of 12444636 in words is "twelve million, four hundred forty-four thousand, six hundred thirty-six".