4443220 has 12 divisors (see below), whose sum is σ = 9330804. Its totient is φ = 1777280.

The previous prime is 4443203. The next prime is 4443221. The reversal of 4443220 is 223444.

It can be written as a sum of positive squares in 2 ways, for example, as 2022084 + 2421136 = 1422^2 + 1556^2 .

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4443221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111061 + ... + 111100.

It is an arithmetic number, because the mean of its divisors is an integer number (777567).

Almost surely, 2^4443220 is an apocalyptic number.

It is an amenable number.

4443220 is an abundant number, since it is smaller than the sum of its proper divisors (4887584).

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

4443220 is a wasteful number, since it uses less digits than its factorization.

4443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222170 (or 222168 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 4443220 is about 2107.8946842762. The cubic root of 4443220 is about 164.3990382036.

Adding to 4443220 its reverse (223444), we get a palindrome (4666664).

It can be divided in two parts, 44 and 43220, that added together give a square (43264 = 208²).

The spelling of 4443220 in words is "four million, four hundred forty-three thousand, two hundred twenty".