4422144 has 40 divisors (see below), whose sum is σ = 11784960. Its totient is φ = 1473536.

The previous prime is 4422139. The next prime is 4422151. The reversal of 4422144 is 4412244.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4422144.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97 + ... + 2975.

It is an arithmetic number, because the mean of its divisors is an integer number (294624).

Almost surely, 2^4422144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4422144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5892480).

4422144 is an abundant number, since it is smaller than the sum of its proper divisors (7362816).

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

4422144 is an equidigital number, since it uses as much as digits as its factorization.

4422144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900 (or 2884 counting only the distinct ones).

The product of its digits is 1024, while the sum is 21.

The square root of 4422144 is about 2102.8894407458. The cubic root of 4422144 is about 164.1386889488.

Adding to 4422144 its reverse (4412244), we get a palindrome (8834388).

The spelling of 4422144 in words is "four million, four hundred twenty-two thousand, one hundred forty-four".