2004218 has 4 divisors (see below), whose sum is σ = 3006330. Its totient is φ = 1002108.

The previous prime is 2004209. The next prime is 2004227. The reversal of 2004218 is 8124002.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2004209) and next prime (2004227).

It can be written as a sum of positive squares in only one way, i.e., 1181569 + 822649 = 1087^2 + 907^2 .

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2004196 and 2004205.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 501053 + ... + 501056.

2^2004218 is an apocalyptic number.

2004218 is a deficient number, since it is larger than the sum of its proper divisors (1002112).

2004218 is a wasteful number, since it uses less digits than its factorization.

2004218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002111.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2004218 is about 1415.7040651210. The cubic root of 2004218 is about 126.0806152457.

It can be divided in two parts, 2004 and 218, that added together give a palindrome (2222).

The spelling of 2004218 in words is "two million, four thousand, two hundred eighteen".