2222444 has 72 divisors (see below), whose sum is σ = 5171040. Its totient is φ = 827904.

The previous prime is 2222443. The next prime is 2222477. The reversal of 2222444 is 4442222.

2222444 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2222443) 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 23 ways as a sum of consecutive naturals, for example, 76622 + ... + 76650.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^2222444 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 2222444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585520).

2222444 is an abundant number, since it is smaller than the sum of its proper divisors (2948596).

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

2222444 is a wasteful number, since it uses less digits than its factorization.

2222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 78 counting only the distinct ones).

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

The square root of 2222444 is about 1490.7863696721. The cubic root of 2222444 is about 130.4999290478.

Adding to 2222444 its reverse (4442222), we get a palindrome (6664666).

The spelling of 2222444 in words is "two million, two hundred twenty-two thousand, four hundred forty-four".