2218312842 has 8 divisors (see below), whose sum is σ = 4436625696. Its totient is φ = 739437612.

The previous prime is 2218312801. The next prime is 2218312843. The reversal of 2218312842 is 2482138122.

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

2218312842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2218312843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184859398 + ... + 184859409.

It is an arithmetic number, because the mean of its divisors is an integer number (554578212).

Almost surely, 2^2218312842 is an apocalyptic number.

2218312842 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.

2218312842 is a wasteful number, since it uses less digits than its factorization.

2218312842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369718812.

The product of its digits is 12288, while the sum is 33.

The square root of 2218312842 is about 47098.9685874330. The cubic root of 2218312842 is about 1304.1901959047.

The spelling of 2218312842 in words is "two billion, two hundred eighteen million, three hundred twelve thousand, eight hundred forty-two".