2213244 has 96 divisors (see below), whose sum is σ = 6612480. Its totient is φ = 641520.

The previous prime is 2213243. The next prime is 2213279. The reversal of 2213244 is 4423122.

2213244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 (2213243) 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 31 ways as a sum of consecutive naturals, for example, 96217 + ... + 96239.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2^2213244 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 2213244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3306240).

2213244 is an abundant number, since it is smaller than the sum of its proper divisors (4399236).

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

2213244 is a wasteful number, since it uses less digits than its factorization.

2213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59 (or 39 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2213244 is about 1487.6975499072. The cubic root of 2213244 is about 130.3196080694.

Adding to 2213244 its reverse (4423122), we get a palindrome (6636366).

The spelling of 2213244 in words is "two million, two hundred thirteen thousand, two hundred forty-four".