2808105984 has 132 divisors (see below), whose sum is σ = 8370756160. Its totient is φ = 905748480.

The previous prime is 2808105973. The next prime is 2808105991. The reversal of 2808105984 is 4895018082.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280782 + ... + 290610.

Almost surely, 2^2808105984 is an apocalyptic number.

2808105984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2808105984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4185378080).

2808105984 is an abundant number, since it is smaller than the sum of its proper divisors (5562650176).

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

2808105984 is a wasteful number, since it uses less digits than its factorization.

2808105984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9886 (or 9865 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2808105984 is about 52991.5652156077. The cubic root of 2808105984 is about 1410.8185619715.

The spelling of 2808105984 in words is "two billion, eight hundred eight million, one hundred five thousand, nine hundred eighty-four".