2808864028 has 12 divisors (see below), whose sum is σ = 5048363992. Its totient is φ = 1366474320.

The previous prime is 2808864007. The next prime is 2808864053. The reversal of 2808864028 is 8204688082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9489258 + ... + 9489553.

Almost surely, 2^2808864028 is an apocalyptic number.

It is an amenable number.

2808864028 is a deficient number, since it is larger than the sum of its proper divisors (2239499964).

2808864028 is a wasteful number, since it uses less digits than its factorization.

2808864028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18978852 (or 18978850 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 46.

The square root of 2808864028 is about 52998.7172297594. The cubic root of 2808864028 is about 1410.9455000018.

The spelling of 2808864028 in words is "two billion, eight hundred eight million, eight hundred sixty-four thousand, twenty-eight".