12242644 has 12 divisors (see below), whose sum is σ = 22115968. Its totient is φ = 5923800.

The previous prime is 12242623. The next prime is 12242651. The reversal of 12242644 is 44624221.

12242644 = T₄₇ + T₄₈ + ... + T₄₁₈.

It is a happy number.

It is a super-2 number, since 2×12242644² = 299764664221472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49242 + ... + 49489.

Almost surely, 2^12242644 is an apocalyptic number.

It is an amenable number.

12242644 is a deficient number, since it is larger than the sum of its proper divisors (9873324).

12242644 is a wasteful number, since it uses less digits than its factorization.

12242644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98766 (or 98764 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 12242644 is about 3498.9489850525. The cubic root of 12242644 is about 230.4756633648.

Adding to 12242644 its reverse (44624221), we get a palindrome (56866865).

The spelling of 12242644 in words is "twelve million, two hundred forty-two thousand, six hundred forty-four".