12442544 has 20 divisors (see below), whose sum is σ = 24186696. Its totient is φ = 6200832.

The previous prime is 12442531. The next prime is 12442553. The reversal of 12442544 is 44524421.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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, 4547 + ... + 6749.

Almost surely, 2^12442544 is an apocalyptic number.

It is an amenable number.

12442544 is a deficient number, since it is larger than the sum of its proper divisors (11744152).

12442544 is a wasteful number, since it uses less digits than its factorization.

12442544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2558 counting only the distinct ones).

The product of its digits is 5120, while the sum is 26.

The square root of 12442544 is about 3527.3990417870. The cubic root of 12442544 is about 231.7233126380.

Adding to 12442544 its reverse (44524421), we get a palindrome (56966965).

The spelling of 12442544 in words is "twelve million, four hundred forty-two thousand, five hundred forty-four".