444288169 has 16 divisors (see below), whose sum is σ = 490823872. Its totient is φ = 399567168.

The previous prime is 444288157. The next prime is 444288199. The reversal of 444288169 is 961882444.

It is not a de Polignac number, because 444288169 - 2⁵ = 444288137 is a prime.

It is a super-2 number, since 2×444288169² = 394783954226745122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444288139) 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, 305047 + ... + 306499.

It is an arithmetic number, because the mean of its divisors is an integer number (30676492).

Almost surely, 2^444288169 is an apocalyptic number.

It is an amenable number.

444288169 is a deficient number, since it is larger than the sum of its proper divisors (46535703).

444288169 is a wasteful number, since it uses less digits than its factorization.

444288169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its digits is 442368, while the sum is 46.

The square root of 444288169 is about 21078.1443443203. The cubic root of 444288169 is about 763.0533725197.

The spelling of 444288169 in words is "four hundred forty-four million, two hundred eighty-eight thousand, one hundred sixty-nine".