12444225 has 24 divisors (see below), whose sum is σ = 20683200. Its totient is φ = 6601920.

The previous prime is 12444193. The next prime is 12444239. The reversal of 12444225 is 52244421.

It is a happy number.

12444225 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12444225 - 2⁵ = 12444193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12444195 and 12444204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20476 + ... + 21074.

It is an arithmetic number, because the mean of its divisors is an integer number (861800).

Almost surely, 2^12444225 is an apocalyptic number.

12444225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12444225 is a deficient number, since it is larger than the sum of its proper divisors (8238975).

12444225 is a wasteful number, since it uses less digits than its factorization.

12444225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889 (or 884 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 12444225 is about 3527.6373112892. The cubic root of 12444225 is about 231.7337475176.

Adding to 12444225 its reverse (52244421), we get a palindrome (64688646).

The spelling of 12444225 in words is "twelve million, four hundred forty-four thousand, two hundred twenty-five".