12444218 has 8 divisors (see below), whose sum is σ = 18681300. Its totient is φ = 6217120.

The previous prime is 12444193. The next prime is 12444239. The reversal of 12444218 is 81244421.

It can be written as a sum of positive squares in 2 ways, for example, as 12439729 + 4489 = 3527^2 + 67^2 .

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

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, 3608 + ... + 6156.

Almost surely, 2^12444218 is an apocalyptic number.

12444218 is a deficient number, since it is larger than the sum of its proper divisors (6237082).

12444218 is a wasteful number, since it uses less digits than its factorization.

12444218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4992.

The product of its digits is 2048, while the sum is 26.

The square root of 12444218 is about 3527.6363191236. The cubic root of 12444218 is about 231.7337040668.

Adding to 12444218 its reverse (81244421), we get a palindrome (93688639).

The spelling of 12444218 in words is "twelve million, four hundred forty-four thousand, two hundred eighteen".