4444400225 has 24 divisors (see below), whose sum is σ = 5694093888. Its totient is φ = 3438590400.

The previous prime is 4444400197. The next prime is 4444400227. The reversal of 4444400225 is 5220044444.

It is not a de Polignac number, because 4444400225 - 2²⁸ = 4175964769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444400227) 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, 140090 + ... + 168860.

It is an arithmetic number, because the mean of its divisors is an integer number (237253912).

Almost surely, 2^4444400225 is an apocalyptic number.

It is an amenable number.

4444400225 is a deficient number, since it is larger than the sum of its proper divisors (1249693663).

4444400225 is a wasteful number, since it uses less digits than its factorization.

4444400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28985 (or 28980 counting only the distinct ones).

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

The square root of 4444400225 is about 66666.3350200084. The cubic root of 4444400225 is about 1644.1359301425.

Adding to 4444400225 its reverse (5220044444), we get a palindrome (9664444669).

The spelling of 4444400225 in words is "four billion, four hundred forty-four million, four hundred thousand, two hundred twenty-five".