2218878834 has 8 divisors (see below), whose sum is σ = 4437757680. Its totient is φ = 739626276.

The previous prime is 2218878821. The next prime is 2218878841. The reversal of 2218878834 is 4388788122.

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

2218878834 is an admirable number.

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, 184906564 + ... + 184906575.

It is an arithmetic number, because the mean of its divisors is an integer number (554719710).

Almost surely, 2^2218878834 is an apocalyptic number.

2218878834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2218878834 is a wasteful number, since it uses less digits than its factorization.

2218878834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369813144.

The product of its digits is 1376256, while the sum is 51.

The square root of 2218878834 is about 47104.9767434398. The cubic root of 2218878834 is about 1304.3011057867.

The spelling of 2218878834 in words is "two billion, two hundred eighteen million, eight hundred seventy-eight thousand, eight hundred thirty-four".