2216887884 has 18 divisors (see below), whose sum is σ = 5603800020. Its totient is φ = 738962616.

The previous prime is 2216887879. The next prime is 2216887891. The reversal of 2216887884 is 4887886122.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2216887884.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30790074 + ... + 30790145.

Almost surely, 2^2216887884 is an apocalyptic number.

It is an amenable number.

2216887884 is an abundant number, since it is smaller than the sum of its proper divisors (3386912136).

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

2216887884 is a wasteful number, since it uses less digits than its factorization.

2216887884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61580229 (or 61580224 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 54.

The square root of 2216887884 is about 47083.8388834216. The cubic root of 2216887884 is about 1303.9108823825.

The spelling of 2216887884 in words is "two billion, two hundred sixteen million, eight hundred eighty-seven thousand, eight hundred eighty-four".