2002804 has 12 divisors (see below), whose sum is σ = 3711204. Its totient is φ = 942464.

The previous prime is 2002799. The next prime is 2002807. The reversal of 2002804 is 4082002.

It can be written as a sum of positive squares in 2 ways, for example, as 1276900 + 725904 = 1130^2 + 852^2 .

It is a super-2 number, since 2×2002804² = 8022447724832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002807) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 14659 + ... + 14794.

It is an arithmetic number, because the mean of its divisors is an integer number (309267).

2^2002804 is an apocalyptic number.

It is an amenable number.

2002804 is a deficient number, since it is larger than the sum of its proper divisors (1708400).

2002804 is a wasteful number, since it uses less digits than its factorization.

2002804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29474 (or 29472 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2002804 is about 1415.2045788507. The cubic root of 2002804 is about 126.0509578046.

Adding to 2002804 its reverse (4082002), we get a palindrome (6084806).

The spelling of 2002804 in words is "two million, two thousand, eight hundred four".