2688004309 has 8 divisors (see below), whose sum is σ = 2865296000. Its totient is φ = 2514294432.

The previous prime is 2688004301. The next prime is 2688004343. The reversal of 2688004309 is 9034008862.

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 2688004309 - 2³ = 2688004301 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 (2688004301) 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, 893904 + ... + 896905.

It is an arithmetic number, because the mean of its divisors is an integer number (358162000).

Almost surely, 2^2688004309 is an apocalyptic number.

It is an amenable number.

2688004309 is a deficient number, since it is larger than the sum of its proper divisors (177291691).

2688004309 is a wasteful number, since it uses less digits than its factorization.

2688004309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790907.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 2688004309 is about 51845.9671430672. The cubic root of 2688004309 is about 1390.4114009204.

The spelling of 2688004309 in words is "two billion, six hundred eighty-eight million, four thousand, three hundred nine".