2003604213 has 16 divisors (see below), whose sum is σ = 2877773696. Its totient is φ = 1232642880.

The previous prime is 2003604203. The next prime is 2003604233. The reversal of 2003604213 is 3124063002.

It is a happy number.

It is not a de Polignac number, because 2003604213 - 2⁶ = 2003604149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003604213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003604203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264231 + ... + 271707.

It is an arithmetic number, because the mean of its divisors is an integer number (179860856).

Almost surely, 2^2003604213 is an apocalyptic number.

It is an amenable number.

2003604213 is a deficient number, since it is larger than the sum of its proper divisors (874169483).

2003604213 is a wasteful number, since it uses less digits than its factorization.

2003604213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2003604213 is about 44761.6377381346. The cubic root of 2003604213 is about 1260.6774330202.

Adding to 2003604213 its reverse (3124063002), we get a palindrome (5127667215).

The spelling of 2003604213 in words is "two billion, three million, six hundred four thousand, two hundred thirteen".