12444223 has 8 divisors (see below), whose sum is σ = 13648896. Its totient is φ = 11251800.

The previous prime is 12444193. The next prime is 12444239. The reversal of 12444223 is 32244421.

It is a happy number.

12444223 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12444223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12444194 and 12444203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861 + ... + 5062.

It is an arithmetic number, because the mean of its divisors is an integer number (1706112).

Almost surely, 2^12444223 is an apocalyptic number.

12444223 is a deficient number, since it is larger than the sum of its proper divisors (1204673).

12444223 is a wasteful number, since it uses less digits than its factorization.

12444223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125.

The product of its digits is 1536, while the sum is 22.

The square root of 12444223 is about 3527.6370278134. The cubic root of 12444223 is about 231.7337351031.

Adding to 12444223 its reverse (32244421), we get a palindrome (44688644).

The spelling of 12444223 in words is "twelve million, four hundred forty-four thousand, two hundred twenty-three".