444522 has 32 divisors (see below), whose sum is σ = 987840. Its totient is φ = 132480.

The previous prime is 444517. The next prime is 444523. The reversal of 444522 is 225444.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 444522.

It is not an unprimeable number, because it can be changed into a prime (444523) 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, 3129 + ... + 3267.

It is an arithmetic number, because the mean of its divisors is an integer number (30870).

2⁴⁴⁴⁵²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493920).

444522 is an abundant number, since it is smaller than the sum of its proper divisors (543318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444522 is a wasteful number, since it uses less digits than its factorization.

444522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198.

The product of its digits is 1280, while the sum is 21.

The square root of 444522 is about 666.7248307960. The cubic root of 444522 is about 76.3187215262.

Adding to 444522 its reverse (225444), we get a palindrome (669966).

The spelling of 444522 in words is "four hundred forty-four thousand, five hundred twenty-two".