444364169 has 4 divisors (see below), whose sum is σ = 444411396. Its totient is φ = 444316944.

The previous prime is 444364157. The next prime is 444364181. The reversal of 444364169 is 961463444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (444364157) and next prime (444364181).

It can be written as a sum of positive squares in 2 ways, for example, as 29019769 + 415344400 = 5387^2 + 20380^2 .

It is a cyclic number.

It is not a de Polignac number, because 444364169 - 2²⁴ = 427586953 is a prime.

It is a super-2 number, since 2×444364169² = 394919029382121122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444364069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4154 + ... + 30099.

It is an arithmetic number, because the mean of its divisors is an integer number (111102849).

Almost surely, 2^444364169 is an apocalyptic number.

It is an amenable number.

444364169 is a deficient number, since it is larger than the sum of its proper divisors (47227).

444364169 is a wasteful number, since it uses less digits than its factorization.

444364169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47226.

The product of its digits is 248832, while the sum is 41.

The square root of 444364169 is about 21079.9470824763. The cubic root of 444364169 is about 763.0968793801.

The spelling of 444364169 in words is "four hundred forty-four million, three hundred sixty-four thousand, one hundred sixty-nine".