444565 has 16 divisors (see below), whose sum is σ = 596160. Its totient is φ = 315520.

The previous prime is 444557. The next prime is 444569. The reversal of 444565 is 565444.

It is not a de Polignac number, because 444565 - 2³ = 444557 is a prime.

444565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177 + ... + 3313.

It is an arithmetic number, because the mean of its divisors is an integer number (37260).

2⁴⁴⁴⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

444565 is a deficient number, since it is larger than the sum of its proper divisors (151595).

444565 is a wasteful number, since it uses less digits than its factorization.

444565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212.

The product of its digits is 9600, while the sum is 28.

The square root of 444565 is about 666.7570772028. The cubic root of 444565 is about 76.3211822962.

The spelling of 444565 in words is "four hundred forty-four thousand, five hundred sixty-five".