2189936982 has 16 divisors (see below), whose sum is σ = 4498249392. Its totient is φ = 710249760.

The previous prime is 2189936971. The next prime is 2189937023. The reversal of 2189936982 is 2896399812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4932069 + ... + 4932512.

It is an arithmetic number, because the mean of its divisors is an integer number (281140587).

Almost surely, 2^2189936982 is an apocalyptic number.

2189936982 is an abundant number, since it is smaller than the sum of its proper divisors (2308312410).

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

2189936982 is a wasteful number, since it uses less digits than its factorization.

2189936982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864623.

The product of its digits is 3359232, while the sum is 57.

The square root of 2189936982 is about 46796.7625162254. The cubic root of 2189936982 is about 1298.6054042629.

The spelling of 2189936982 in words is "two billion, one hundred eighty-nine million, nine hundred thirty-six thousand, nine hundred eighty-two".