444444225 has 24 divisors (see below), whose sum is σ = 736202880. Its totient is φ = 236589120.

The previous prime is 444444199. The next prime is 444444229. The reversal of 444444225 is 522444444.

It is a happy number.

It is not a de Polignac number, because 444444225 - 2⁷ = 444444097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444444229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36456 + ... + 47094.

It is an arithmetic number, because the mean of its divisors is an integer number (30675120).

Almost surely, 2^444444225 is an apocalyptic number.

It is an amenable number.

444444225 is a deficient number, since it is larger than the sum of its proper divisors (291758655).

444444225 is a wasteful number, since it uses less digits than its factorization.

444444225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11209 (or 11204 counting only the distinct ones).

The product of its digits is 81920, while the sum is 33.

The square root of 444444225 is about 21081.8458632066. The cubic root of 444444225 is about 763.1427027683.

Adding to 444444225 its reverse (522444444), we get a palindrome (966888669).

The spelling of 444444225 in words is "four hundred forty-four million, four hundred forty-four thousand, two hundred twenty-five".