2171916244 has 12 divisors (see below), whose sum is σ = 3807537300. Its totient is φ = 1084048448.

The previous prime is 2171916223. The next prime is 2171916259. The reversal of 2171916244 is 4426191712.

2171916244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 214915600 + 1957000644 = 14660^2 + 44238^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474859 + ... + 479410.

It is an arithmetic number, because the mean of its divisors is an integer number (317294775).

Almost surely, 2^2171916244 is an apocalyptic number.

It is an amenable number.

2171916244 is a deficient number, since it is larger than the sum of its proper divisors (1635621056).

2171916244 is a wasteful number, since it uses less digits than its factorization.

2171916244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954842 (or 954840 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 2171916244 is about 46603.8222037635. The cubic root of 2171916244 is about 1295.0335643224.

The spelling of 2171916244 in words is "two billion, one hundred seventy-one million, nine hundred sixteen thousand, two hundred forty-four".