4421144 has 32 divisors (see below), whose sum is σ = 10204320. Its totient is φ = 1748736.

The previous prime is 4421143. The next prime is 4421147. The reversal of 4421144 is 4411244.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 3764.

It is an arithmetic number, because the mean of its divisors is an integer number (318885).

Almost surely, 2^4421144 is an apocalyptic number.

It is an amenable number.

4421144 is an abundant number, since it is smaller than the sum of its proper divisors (5783176).

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

4421144 is a wasteful number, since it uses less digits than its factorization.

4421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099 (or 6095 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 4421144 is about 2102.6516592151. The cubic root of 4421144 is about 164.1263155342.

Adding to 4421144 its reverse (4411244), we get a palindrome (8832388).

The spelling of 4421144 in words is "four million, four hundred twenty-one thousand, one hundred forty-four".