4444444169 has 8 divisors (see below), whose sum is σ = 5059288512. Its totient is φ = 3864733840.

The previous prime is 4444444159. The next prime is 4444444183. The reversal of 4444444169 is 9614444444.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4444444169 - 2²⁸ = 4176008713 is a prime.

It is a super-2 number, since 2×4444444169² = 39506167942716201122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444444139) 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 7 ways as a sum of consecutive naturals, for example, 8783234 + ... + 8783739.

It is an arithmetic number, because the mean of its divisors is an integer number (632411064).

Almost surely, 2^4444444169 is an apocalyptic number.

It is an amenable number.

4444444169 is a deficient number, since it is larger than the sum of its proper divisors (614844343).

4444444169 is a wasteful number, since it uses less digits than its factorization.

4444444169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17567007.

The product of its digits is 884736, while the sum is 44.

The square root of 4444444169 is about 66666.6646008333. The cubic root of 4444444169 is about 1644.1413489218.

The spelling of 4444444169 in words is "four billion, four hundred forty-four million, four hundred forty-four thousand, one hundred sixty-nine".