444625 has 8 divisors (see below), whose sum is σ = 555048. Its totient is φ = 355600.

The previous prime is 444623. The next prime is 444637. The reversal of 444625 is 526444.

444625 = 471² + 472².

It can be written as a sum of positive squares in 4 ways, for example, as 76176 + 368449 = 276^2 + 607^2 .

It is not a de Polignac number, because 444625 - 2¹ = 444623 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 444625.

It is not an unprimeable number, because it can be changed into a prime (444623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654 + ... + 1903.

It is an arithmetic number, because the mean of its divisors is an integer number (69381).

2⁴⁴⁴⁶²⁵ is an apocalyptic number.

444625 is the 472-nd centered square number.

It is an amenable number.

444625 is a deficient number, since it is larger than the sum of its proper divisors (110423).

444625 is an equidigital number, since it uses as much as digits as its factorization.

444625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3572 (or 3562 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 444625 is about 666.8020695829. The cubic root of 444625 is about 76.3246156636.

The spelling of 444625 in words is "four hundred forty-four thousand, six hundred twenty-five".