2820408818 has 8 divisors (see below), whose sum is σ = 4293756912. Its totient is φ = 1389156516.

The previous prime is 2820408809. The next prime is 2820408839. The reversal of 2820408818 is 8188040282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10523780 + ... + 10524047.

It is an arithmetic number, because the mean of its divisors is an integer number (536719614).

Almost surely, 2^2820408818 is an apocalyptic number.

2820408818 is a deficient number, since it is larger than the sum of its proper divisors (1473348094).

2820408818 is a wasteful number, since it uses less digits than its factorization.

2820408818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21047896.

The product of its (nonzero) digits is 65536, while the sum is 41.

The square root of 2820408818 is about 53107.5212940691. The cubic root of 2820408818 is about 1412.8759130842.

The spelling of 2820408818 in words is "two billion, eight hundred twenty million, four hundred eight thousand, eight hundred eighteen".