4421224 has 64 divisors (see below), whose sum is σ = 9720000. Its totient is φ = 1870848.

The previous prime is 4421213. The next prime is 4421227. The reversal of 4421224 is 4221244.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 (4421227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74907 + ... + 74965.

It is an arithmetic number, because the mean of its divisors is an integer number (151875).

Almost surely, 2^4421224 is an apocalyptic number.

It is an amenable number.

4421224 is an abundant number, since it is smaller than the sum of its proper divisors (5298776).

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

4421224 is a wasteful number, since it uses less digits than its factorization.

4421224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 126 counting only the distinct ones).

The product of its digits is 512, while the sum is 19.

The square root of 4421224 is about 2102.6706827271. The cubic root of 4421224 is about 164.1273054760.

Adding to 4421224 its reverse (4221244), we get a palindrome (8642468).

The spelling of 4421224 in words is "four million, four hundred twenty-one thousand, two hundred twenty-four".