12443444 has 12 divisors (see below), whose sum is σ = 23451204. Its totient is φ = 5743104.

The previous prime is 12443429. The next prime is 12443449. The reversal of 12443444 is 44434421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6864400 + 5579044 = 2620^2 + 2362^2 .

It is a super-2 number, since 2×12443444² = 309678597162272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119597 + ... + 119700.

It is an arithmetic number, because the mean of its divisors is an integer number (1954267).

Almost surely, 2^12443444 is an apocalyptic number.

It is an amenable number.

12443444 is a deficient number, since it is larger than the sum of its proper divisors (11007760).

12443444 is a wasteful number, since it uses less digits than its factorization.

12443444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239314 (or 239312 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 12443444 is about 3527.5266122313. The cubic root of 12443444 is about 231.7288995435.

Adding to 12443444 its reverse (44434421), we get a palindrome (56877865).

The spelling of 12443444 in words is "twelve million, four hundred forty-three thousand, four hundred forty-four".