2808396066 has 32 divisors (see below), whose sum is σ = 6446763648. Its totient is φ = 798952320.

The previous prime is 2808396037. The next prime is 2808396109. The reversal of 2808396066 is 6606938082.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133705 + ... + 153276.

It is an arithmetic number, because the mean of its divisors is an integer number (201461364).

Almost surely, 2^2808396066 is an apocalyptic number.

2808396066 is an abundant number, since it is smaller than the sum of its proper divisors (3638367582).

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

2808396066 is a wasteful number, since it uses less digits than its factorization.

2808396066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287226.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 2808396066 is about 52994.3022031614. The cubic root of 2808396066 is about 1410.8671402637.

The spelling of 2808396066 in words is "two billion, eight hundred eight million, three hundred ninety-six thousand, sixty-six".