4220444 has 12 divisors (see below), whose sum is σ = 7400568. Its totient is φ = 2106000.

The previous prime is 4220441. The next prime is 4220449. The reversal of 4220444 is 4440224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220441) 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, 2594 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (616714).

Almost surely, 2^4220444 is an apocalyptic number.

It is an amenable number.

4220444 is a deficient number, since it is larger than the sum of its proper divisors (3180124).

4220444 is a wasteful number, since it uses less digits than its factorization.

4220444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4220444 is about 2054.3719234842. The cubic root of 4220444 is about 161.6042261908.

Adding to 4220444 its reverse (4440224), we get a palindrome (8660668).

It can be divided in two parts, 4220 and 444, that added together give a palindrome (4664).

The spelling of 4220444 in words is "four million, two hundred twenty thousand, four hundred forty-four".