12443422 has 8 divisors (see below), whose sum is σ = 19763136. Its totient is φ = 5855712.

The previous prime is 12443411. The next prime is 12443429. The reversal of 12443422 is 22434421.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12443393 and 12443402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182958 + ... + 183025.

It is an arithmetic number, because the mean of its divisors is an integer number (2470392).

Almost surely, 2^12443422 is an apocalyptic number.

12443422 is a deficient number, since it is larger than the sum of its proper divisors (7319714).

12443422 is a wasteful number, since it uses less digits than its factorization.

12443422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366002.

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

The square root of 12443422 is about 3527.5234938977. The cubic root of 12443422 is about 231.7287629779.

Adding to 12443422 its reverse (22434421), we get a palindrome (34877843).

Subtracting 12443422 from its reverse (22434421), we obtain a palindrome (9990999).

The spelling of 12443422 in words is "twelve million, four hundred forty-three thousand, four hundred twenty-two".