4144221444 has 72 divisors (see below), whose sum is σ = 11254136544. Its totient is φ = 1181945600.

The previous prime is 4144221437. The next prime is 4144221451. The reversal of 4144221444 is 4441224414.

It is an interprime number because it is at equal distance from previous prime (4144221437) and next prime (4144221451).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59262 + ... + 108629.

It is an arithmetic number, because the mean of its divisors is an integer number (156307452).

Almost surely, 2^4144221444 is an apocalyptic number.

4144221444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4144221444 is an abundant number, since it is smaller than the sum of its proper divisors (7109915100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4144221444 is a wasteful number, since it uses less digits than its factorization.

4144221444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167937 (or 167924 counting only the distinct ones).

The product of its digits is 16384, while the sum is 30.

The square root of 4144221444 is about 64375.6277173279. The cubic root of 4144221444 is about 1606.2543539093.

Adding to 4144221444 its reverse (4441224414), we get a palindrome (8585445858).

The spelling of 4144221444 in words is "four billion, one hundred forty-four million, two hundred twenty-one thousand, four hundred forty-four".