2004402045 has 16 divisors (see below), whose sum is σ = 3346480512. Its totient is φ = 1022535360.

The previous prime is 2004401947. The next prime is 2004402067. The reversal of 2004402045 is 5402044002.

It is not a de Polignac number, because 2004402045 - 2⁹ = 2004401533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2904586 + ... + 2905275.

It is an arithmetic number, because the mean of its divisors is an integer number (209155032).

Almost surely, 2^2004402045 is an apocalyptic number.

It is an amenable number.

2004402045 is a deficient number, since it is larger than the sum of its proper divisors (1342078467).

2004402045 is a wasteful number, since it uses less digits than its factorization.

2004402045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5809892.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2004402045 is about 44770.5488574800. The cubic root of 2004402045 is about 1260.8447440618.

Adding to 2004402045 its reverse (5402044002), we get a palindrome (7406446047).

The spelling of 2004402045 in words is "two billion, four million, four hundred two thousand, forty-five".