2004440687 has 8 divisors (see below), whose sum is σ = 2069630592. Its totient is φ = 1939284000.

The previous prime is 2004440681. The next prime is 2004440699. The reversal of 2004440687 is 7860444002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2004440687 - 2⁴ = 2004440671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004440681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189437 + ... + 199737.

It is an arithmetic number, because the mean of its divisors is an integer number (258703824).

Almost surely, 2^2004440687 is an apocalyptic number.

2004440687 is a deficient number, since it is larger than the sum of its proper divisors (65189905).

2004440687 is a wasteful number, since it uses less digits than its factorization.

2004440687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16609.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 2004440687 is about 44770.9804114228. The cubic root of 2004440687 is about 1260.8528464365.

Adding to 2004440687 its reverse (7860444002), we get a palindrome (9864884689).

The spelling of 2004440687 in words is "two billion, four million, four hundred forty thousand, six hundred eighty-seven".