2204220 has 48 divisors (see below), whose sum is σ = 6537888. Its totient is φ = 552960.

The previous prime is 2204207. The next prime is 2204221. The reversal of 2204220 is 224022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2204196 and 2204205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (136206).

2^2204220 is an apocalyptic number.

2204220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2204220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3268944).

2204220 is an abundant number, since it is smaller than the sum of its proper divisors (4333668).

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

2204220 is a wasteful number, since it uses less digits than its factorization.

2204220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190 (or 2188 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2204220 is about 1484.6615775994. The cubic root of 2204220 is about 130.1422505992.

Adding to 2204220 its reverse (224022), we get a palindrome (2428242).

The spelling of 2204220 in words is "two million, two hundred four thousand, two hundred twenty".