2004816 has 40 divisors (see below), whose sum is σ = 5651424. Its totient is φ = 607360.

The previous prime is 2004811. The next prime is 2004817. The reversal of 2004816 is 6184002.

It is a junction number, because it is equal to n+sod(n) for n = 2004792 and 2004801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371 + ... + 2426.

2^2004816 is an apocalyptic number.

It is an amenable number.

2004816 is an abundant number, since it is smaller than the sum of its proper divisors (3646608).

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

2004816 is a wasteful number, since it uses less digits than its factorization.

2004816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819 (or 3813 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2004816 is about 1415.9152517012. The cubic root of 2004816 is about 126.0931535874.

Adding to 2004816 its reverse (6184002), we get a palindrome (8188818).

The spelling of 2004816 in words is "two million, four thousand, eight hundred sixteen".