2004228 has 18 divisors (see below), whose sum is σ = 5066334. Its totient is φ = 668064.

The previous prime is 2004227. The next prime is 2004251. The reversal of 2004228 is 8224002.

It can be written as a sum of positive squares in only one way, i.e., 1937664 + 66564 = 1392^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2004228.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27801 + ... + 27872.

It is an arithmetic number, because the mean of its divisors is an integer number (281463).

2^2004228 is an apocalyptic number.

It is an amenable number.

2004228 is an abundant number, since it is smaller than the sum of its proper divisors (3062106).

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

2004228 is a wasteful number, since it uses less digits than its factorization.

2004228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55683 (or 55678 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2004228 is about 1415.7075969281. The cubic root of 2004228 is about 126.0808249375.

The spelling of 2004228 in words is "two million, four thousand, two hundred twenty-eight".