2189684088 has 192 divisors, whose sum is σ = 6368544000. Its totient is φ = 678188544.

The previous prime is 2189684071. The next prime is 2189684131. The reversal of 2189684088 is 8804869812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12232783 + ... + 12232961.

It is an arithmetic number, because the mean of its divisors is an integer number (33169500).

Almost surely, 2^2189684088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189684088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3184272000).

2189684088 is an abundant number, since it is smaller than the sum of its proper divisors (4178859912).

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

2189684088 is a wasteful number, since it uses less digits than its factorization.

2189684088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The square root of 2189684088 is about 46794.0603923190. The cubic root of 2189684088 is about 1298.5554146726. Note that the first 3 decimals are identical.

The spelling of 2189684088 in words is "two billion, one hundred eighty-nine million, six hundred eighty-four thousand, eighty-eight".