12422444 has 48 divisors (see below), whose sum is σ = 24385536. Its totient is φ = 5510400.

The previous prime is 12422441. The next prime is 12422453. The reversal of 12422444 is 44422421.

It is a super-2 number, since 2×12422444² = 308634229866272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12422441) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 149627 + ... + 149709.

It is an arithmetic number, because the mean of its divisors is an integer number (508032).

Almost surely, 2^12422444 is an apocalyptic number.

It is an amenable number.

12422444 is a deficient number, since it is larger than the sum of its proper divisors (11963092).

12422444 is a wasteful number, since it uses less digits than its factorization.

12422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 204 counting only the distinct ones).

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

The square root of 12422444 is about 3524.5487654450. The cubic root of 12422444 is about 231.5984681566.

Subtracting from 12422444 its sum of digits (23), we obtain a palindrome (12422421).

Adding to 12422444 its reverse (44422421), we get a palindrome (56844865).

The spelling of 12422444 in words is "twelve million, four hundred twenty-two thousand, four hundred forty-four".