444459425 has 6 divisors (see below), whose sum is σ = 551129718. Its totient is φ = 355567520.

The previous prime is 444459413. The next prime is 444459427. The reversal of 444459425 is 524954444.

It can be written as a sum of positive squares in 3 ways, for example, as 153859216 + 290600209 = 12404^2 + 17047^2 .

It is not a de Polignac number, because 444459425 - 2⁴ = 444459409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444459427) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8889164 + ... + 8889213.

It is an arithmetic number, because the mean of its divisors is an integer number (91854953).

Almost surely, 2^444459425 is an apocalyptic number.

It is an amenable number.

444459425 is a deficient number, since it is larger than the sum of its proper divisors (106670293).

444459425 is a wasteful number, since it uses less digits than its factorization.

444459425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17778387 (or 17778382 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

The square root of 444459425 is about 21082.2063598666. The cubic root of 444459425 is about 763.1514025002.

The spelling of 444459425 in words is "four hundred forty-four million, four hundred fifty-nine thousand, four hundred twenty-five".