444244161 has 4 divisors (see below), whose sum is σ = 592325552. Its totient is φ = 296162772.

The previous prime is 444244159. The next prime is 444244181. The reversal of 444244161 is 161442444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 444244161 - 2¹ = 444244159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444244121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74040691 + ... + 74040696.

It is an arithmetic number, because the mean of its divisors is an integer number (148081388).

Almost surely, 2^444244161 is an apocalyptic number.

It is an amenable number.

444244161 is a deficient number, since it is larger than the sum of its proper divisors (148081391).

444244161 is a wasteful number, since it uses less digits than its factorization.

444244161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148081390.

The product of its digits is 12288, while the sum is 30.

The square root of 444244161 is about 21077.1003935551. The cubic root of 444244161 is about 763.0281774895.

The spelling of 444244161 in words is "four hundred forty-four million, two hundred forty-four thousand, one hundred sixty-one".