2144423444 has 24 divisors (see below), whose sum is σ = 3895923360. Its totient is φ = 1031565024.

The previous prime is 2144423443. The next prime is 2144423447. The reversal of 2144423444 is 4443244412.

It is a super-2 number, since 2×2144423444² = 9197103814353642272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2144423444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144423443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167 + ... + 65489.

It is an arithmetic number, because the mean of its divisors is an integer number (162330140).

Almost surely, 2^2144423444 is an apocalyptic number.

It is an amenable number.

2144423444 is a deficient number, since it is larger than the sum of its proper divisors (1751499916).

2144423444 is a wasteful number, since it uses less digits than its factorization.

2144423444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65639 (or 65637 counting only the distinct ones).

The product of its digits is 49152, while the sum is 32.

The square root of 2144423444 is about 46307.9198841840. The cubic root of 2144423444 is about 1289.5460301926.

Adding to 2144423444 its reverse (4443244412), we get a palindrome (6587667856).

The spelling of 2144423444 in words is "two billion, one hundred forty-four million, four hundred twenty-three thousand, four hundred forty-four".