2103604 has 24 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 982080.

The previous prime is 2103601. The next prime is 2103611. The reversal of 2103604 is 4063012.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6609 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2^2103604 is an apocalyptic number.

It is an amenable number.

2103604 is a deficient number, since it is larger than the sum of its proper divisors (1827596).

2103604 is a wasteful number, since it uses less digits than its factorization.

2103604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2103604 is about 1450.3806396943. The cubic root of 2103604 is about 128.1311318898.

Adding to 2103604 its reverse (4063012), we get a palindrome (6166616).

The spelling of 2103604 in words is "two million, one hundred three thousand, six hundred four".