2213618888 has 16 divisors (see below), whose sum is σ = 4469807580. Its totient is φ = 1021670208.

The previous prime is 2213618879. The next prime is 2213618929. The reversal of 2213618888 is 8888163122.

It can be written as a sum of positive squares in 2 ways, for example, as 2212949764 + 669124 = 47042^2 + 818^2 .

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, 10642295 + ... + 10642502.

Almost surely, 2^2213618888 is an apocalyptic number.

It is an amenable number.

2213618888 is an abundant number, since it is smaller than the sum of its proper divisors (2256188692).

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

2213618888 is a wasteful number, since it uses less digits than its factorization.

2213618888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21284816 (or 21284812 counting only the distinct ones).

The product of its digits is 294912, while the sum is 47.

The square root of 2213618888 is about 47049.1114475077. Note that the first 3 decimals coincide. The cubic root of 2213618888 is about 1303.2696567043.

The spelling of 2213618888 in words is "two billion, two hundred thirteen million, six hundred eighteen thousand, eight hundred eighty-eight".