2806205064 has 64 divisors (see below), whose sum is σ = 7798909440. Its totient is φ = 835591680.

The previous prime is 2806205063. The next prime is 2806205071. The reversal of 2806205064 is 4605026082.

It is a super-2 number, since 2×2806205064² = 15749573722438488192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2806205063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135397 + ... + 154740.

It is an arithmetic number, because the mean of its divisors is an integer number (121857960).

Almost surely, 2^2806205064 is an apocalyptic number.

2806205064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2806205064 is an abundant number, since it is smaller than the sum of its proper divisors (4992704376).

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

2806205064 is a wasteful number, since it uses less digits than its factorization.

2806205064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290190 (or 290186 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 2806205064 is about 52973.6261171538. The cubic root of 2806205064 is about 1410.5001434817.

The spelling of 2806205064 in words is "two billion, eight hundred six million, two hundred five thousand, sixty-four".