2003206604 has 12 divisors (see below), whose sum is σ = 4006413264. Its totient is φ = 858517104.

The previous prime is 2003206589. The next prime is 2003206631. The reversal of 2003206604 is 4066023002.

2003206604 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2003206604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35771519 + ... + 35771574.

It is an arithmetic number, because the mean of its divisors is an integer number (333867772).

Almost surely, 2^2003206604 is an apocalyptic number.

It is an amenable number.

2003206604 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2003206604 is a wasteful number, since it uses less digits than its factorization.

2003206604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71543104 (or 71543102 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2003206604 is about 44757.1961141446. The cubic root of 2003206604 is about 1260.5940350032.

Adding to 2003206604 its reverse (4066023002), we get a palindrome (6069229606).

The spelling of 2003206604 in words is "two billion, three million, two hundred six thousand, six hundred four".