444022225 has 12 divisors (see below), whose sum is σ = 551186944. Its totient is φ = 354831120.

The previous prime is 444022223. The next prime is 444022247. The reversal of 444022225 is 522220444.

It is not a de Polignac number, because 444022225 - 2¹ = 444022223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444022225.

It is not an unprimeable number, because it can be changed into a prime (444022223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14992 + ... + 33358.

Almost surely, 2^444022225 is an apocalyptic number.

It is an amenable number.

444022225 is a deficient number, since it is larger than the sum of its proper divisors (107164719).

444022225 is a wasteful number, since it uses less digits than its factorization.

444022225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19344 (or 19339 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 444022225 is about 21071.8348750174. The cubic root of 444022225 is about 762.9010914974.

Adding to 444022225 its reverse (522220444), we get a palindrome (966242669).

The spelling of 444022225 in words is "four hundred forty-four million, twenty-two thousand, two hundred twenty-five".