12444242 has 8 divisors (see below), whose sum is σ = 19478016. Its totient is φ = 5951572.

The previous prime is 12444239. The next prime is 12444251. The reversal of 12444242 is 24244421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135218 + ... + 135309.

It is an arithmetic number, because the mean of its divisors is an integer number (2434752).

Almost surely, 2^12444242 is an apocalyptic number.

12444242 is a deficient number, since it is larger than the sum of its proper divisors (7033774).

12444242 is a wasteful number, since it uses less digits than its factorization.

12444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270552.

The product of its digits is 2048, while the sum is 23.

The square root of 12444242 is about 3527.6397208332. The cubic root of 12444242 is about 231.7338530411.

Adding to 12444242 its reverse (24244421), we get a palindrome (36688663).

The spelling of 12444242 in words is "twelve million, four hundred forty-four thousand, two hundred forty-two".