2102804 has 12 divisors (see below), whose sum is σ = 4014528. Its totient is φ = 955800.

The previous prime is 2102801. The next prime is 2102809. The reversal of 2102804 is 4082012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23852 + ... + 23939.

It is an arithmetic number, because the mean of its divisors is an integer number (334544).

2^2102804 is an apocalyptic number.

It is an amenable number.

2102804 is a deficient number, since it is larger than the sum of its proper divisors (1911724).

2102804 is a wasteful number, since it uses less digits than its factorization.

2102804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47806 (or 47804 counting only the distinct ones).

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

The square root of 2102804 is about 1450.1048237972. The cubic root of 2102804 is about 128.1148870860.

Adding to 2102804 its reverse (4082012), we get a palindrome (6184816).

The spelling of 2102804 in words is "two million, one hundred two thousand, eight hundred four".