2004045 has 32 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 967680.

The previous prime is 2004043. The next prime is 2004049. The reversal of 2004045 is 5404002.

It is not a de Polignac number, because 2004045 - 2¹ = 2004043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004043) 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 31 ways as a sum of consecutive naturals, for example, 7260 + ... + 7530.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^2004045 is an apocalyptic number.

It is an amenable number.

2004045 is a deficient number, since it is larger than the sum of its proper divisors (1521075).

2004045 is a wasteful number, since it uses less digits than its factorization.

2004045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2004045 is about 1415.6429634622. The cubic root of 2004045 is about 126.0769874677.

Adding to 2004045 its reverse (5404002), we get a palindrome (7408047).

The spelling of 2004045 in words is "two million, four thousand, forty-five".