12005244 has 18 divisors (see below), whose sum is σ = 30346680. Its totient is φ = 4001736.

The previous prime is 12005243. The next prime is 12005269. The reversal of 12005244 is 44250021.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166704 + ... + 166775.

Almost surely, 2^12005244 is an apocalyptic number.

It is an amenable number.

12005244 is an abundant number, since it is smaller than the sum of its proper divisors (18341436).

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

12005244 is a wasteful number, since it uses less digits than its factorization.

12005244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333489 (or 333484 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12005244 is about 3464.8584386667. The cubic root of 12005244 is about 228.9761929956.

Adding to 12005244 its reverse (44250021), we get a palindrome (56255265).

The spelling of 12005244 in words is "twelve million, five thousand, two hundred forty-four".