2198569896 has 96 divisors (see below), whose sum is σ = 6264858600. Its totient is φ = 695623680.

The previous prime is 2198569873. The next prime is 2198569909. The reversal of 2198569896 is 6989658912.

It can be written as a sum of positive squares in 4 ways, for example, as 2096357796 + 102212100 = 45786^2 + 10110^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99160 + ... + 119288.

Almost surely, 2^2198569896 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 2198569896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3132429300).

2198569896 is an abundant number, since it is smaller than the sum of its proper divisors (4066288704).

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

2198569896 is a wasteful number, since it uses less digits than its factorization.

2198569896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20219 (or 20212 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 63.

The square root of 2198569896 is about 46888.9101600794. The cubic root of 2198569896 is about 1300.3095704572.

The spelling of 2198569896 in words is "two billion, one hundred ninety-eight million, five hundred sixty-nine thousand, eight hundred ninety-six".