2004220 has 24 divisors (see below), whose sum is σ = 4392864. Its totient is φ = 766656.

The previous prime is 2004209. The next prime is 2004227. The reversal of 2004220 is 224002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2004197 and 2004206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1719 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (183036).

2^2004220 is an apocalyptic number.

2004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004220 is an abundant number, since it is smaller than the sum of its proper divisors (2388644).

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

2004220 is a wasteful number, since it uses less digits than its factorization.

2004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 2004220 is about 1415.7047714831. The cubic root of 2004220 is about 126.0806571841.

Adding to 2004220 its reverse (224002), we get a palindrome (2228222).

The spelling of 2004220 in words is "two million, four thousand, two hundred twenty".