44444189 has 4 divisors (see below), whose sum is σ = 44467740. Its totient is φ = 44420640.

The previous prime is 44444177. The next prime is 44444203. The reversal of 44444189 is 98144444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18992164 + 25452025 = 4358^2 + 5045^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444189 - 2²⁰ = 43395613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44444129) 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, 8672 + ... + 12809.

It is an arithmetic number, because the mean of its divisors is an integer number (11116935).

Almost surely, 2^44444189 is an apocalyptic number.

It is an amenable number.

44444189 is a deficient number, since it is larger than the sum of its proper divisors (23551).

44444189 is a wasteful number, since it uses less digits than its factorization.

44444189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23550.

The product of its digits is 73728, while the sum is 38.

The square root of 44444189 is about 6666.6475083058. The cubic root of 44444189 is about 354.2188444340.

The spelling of 44444189 in words is "forty-four million, four hundred forty-four thousand, one hundred eighty-nine".