2805284812 has 24 divisors (see below), whose sum is σ = 5399814672. Its totient is φ = 1275127040.

The previous prime is 2805284803. The next prime is 2805284837. The reversal of 2805284812 is 2184825082.

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 7 ways as a sum of consecutive naturals, for example, 258133 + ... + 268780.

It is an arithmetic number, because the mean of its divisors is an integer number (224992278).

Almost surely, 2^2805284812 is an apocalyptic number.

2805284812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2805284812 is a deficient number, since it is larger than the sum of its proper divisors (2594529860).

2805284812 is a wasteful number, since it uses less digits than its factorization.

2805284812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526950 (or 526926 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 2805284812 is about 52964.9394599862. The cubic root of 2805284812 is about 1410.3459426467.

The spelling of 2805284812 in words is "two billion, eight hundred five million, two hundred eighty-four thousand, eight hundred twelve".