444889 has 9 divisors (see below), whose sum is σ = 481663. Its totient is φ = 410872.

The previous prime is 444887. The next prime is 444893. The reversal of 444889 is 988444.

The square root of 444889 is 667.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 233289 + 211600 = 483^2 + 460^2 .

It is not a de Polignac number, because 444889 - 2¹ = 444887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (444883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15327 + ... + 15355.

2⁴⁴⁴⁸⁸⁹ is an apocalyptic number.

444889 is the 667-th square number.

444889 is the 334-th centered octagonal number.

It is an amenable number.

444889 is a deficient number, since it is larger than the sum of its proper divisors (36774).

444889 is an equidigital number, since it uses as much as digits as its factorization.

444889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 52 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The cubic root of 444889 is about 76.3397188118.

Multiplying 444889 by its product of digits (36864), we get a square (16400388096 = 128064²).

It can be divided in two parts, 444 and 889, that multiplied together give a triangular number (394716 = T₈₈₈).

The spelling of 444889 in words is "four hundred forty-four thousand, eight hundred eighty-nine".