2171087296 has 84 divisors (see below), whose sum is σ = 5086932168. Its totient is φ = 916489728.

The previous prime is 2171087293. The next prime is 2171087297. The reversal of 2171087296 is 6927801712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171087293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204946 + ... + 215278.

Almost surely, 2^2171087296 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 2171087296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2543466084).

2171087296 is an abundant number, since it is smaller than the sum of its proper divisors (2915844872).

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

2171087296 is a wasteful number, since it uses less digits than its factorization.

2171087296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426 (or 10409 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 2171087296 is about 46594.9277926257. The cubic root of 2171087296 is about 1294.8687863159.

The spelling of 2171087296 in words is "two billion, one hundred seventy-one million, eighty-seven thousand, two hundred ninety-six".