444222425 has 12 divisors (see below), whose sum is σ = 551491116. Its totient is φ = 354955200.

The previous prime is 444222419. The next prime is 444222431. The reversal of 444222425 is 524222444.

It is an interprime number because it is at equal distance from previous prime (444222419) and next prime (444222431).

It can be written as a sum of positive squares in 6 ways, for example, as 36626704 + 407595721 = 6052^2 + 20189^2 .

It is not a de Polignac number, because 444222425 - 2⁴ = 444222409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11795 + ... + 32055.

It is an arithmetic number, because the mean of its divisors is an integer number (45957593).

Almost surely, 2^444222425 is an apocalyptic number.

It is an amenable number.

444222425 is a deficient number, since it is larger than the sum of its proper divisors (107268691).

444222425 is a wasteful number, since it uses less digits than its factorization.

444222425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21148 (or 21143 counting only the distinct ones).

The product of its digits is 20480, while the sum is 29.

The square root of 444222425 is about 21076.5847565492. The cubic root of 444222425 is about 763.0157327932.

Adding to 444222425 its reverse (524222444), we get a palindrome (968444869).

The spelling of 444222425 in words is "four hundred forty-four million, two hundred twenty-two thousand, four hundred twenty-five".