444425 has 12 divisors (see below), whose sum is σ = 571020. Its totient is φ = 342720.

The previous prime is 444421. The next prime is 444443. The reversal of 444425 is 524444.

It can be written as a sum of positive squares in 6 ways, for example, as 99856 + 344569 = 316^2 + 587^2 .

It is not a de Polignac number, because 444425 - 2² = 444421 is a prime.

It is a super-3 number, since 3×444425³ = 263339919207796875, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444425.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (47585).

2⁴⁴⁴⁴²⁵ is an apocalyptic number.

It is an amenable number.

444425 is a deficient number, since it is larger than the sum of its proper divisors (126595).

444425 is a wasteful number, since it uses less digits than its factorization.

444425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 647 counting only the distinct ones).

The product of its digits is 2560, while the sum is 23.

The square root of 444425 is about 666.6520831738. The cubic root of 444425 is about 76.3131699040.

Adding to 444425 its product of digits (2560), we get a triangular number (446985 = T₉₄₅).

Adding to 444425 its reverse (524444), we get a palindrome (968869).

The spelling of 444425 in words is "four hundred forty-four thousand, four hundred twenty-five".