2216881828 has 12 divisors (see below), whose sum is σ = 4433763712. Its totient is φ = 950092200.

The previous prime is 2216881789. The next prime is 2216881861. The reversal of 2216881828 is 8281886122.

2216881828 is an admirable number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 39587148 + ... + 39587203.

Almost surely, 2^2216881828 is an apocalyptic number.

2216881828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2216881828 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.

2216881828 is a wasteful number, since it uses less digits than its factorization.

2216881828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79174362 (or 79174360 counting only the distinct ones).

The product of its digits is 196608, while the sum is 46.

The square root of 2216881828 is about 47083.7745725637. The cubic root of 2216881828 is about 1303.9096950586.

The spelling of 2216881828 in words is "two billion, two hundred sixteen million, eight hundred eighty-one thousand, eight hundred twenty-eight".