2291116 has 12 divisors (see below), whose sum is σ = 4147920. Its totient is φ = 1106000.

The previous prime is 2291063. The next prime is 2291119. The reversal of 2291116 is 6111922.

It is not an unprimeable number, because it can be changed into a prime (2291119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9760 + ... + 9991.

It is an arithmetic number, because the mean of its divisors is an integer number (345660).

2^2291116 is an apocalyptic number.

It is an amenable number.

2291116 is a deficient number, since it is larger than the sum of its proper divisors (1856804).

2291116 is a wasteful number, since it uses less digits than its factorization.

2291116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19784 (or 19782 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

The square root of 2291116 is about 1513.6432869075. The cubic root of 2291116 is about 131.8304373140.

The spelling of 2291116 in words is "two million, two hundred ninety-one thousand, one hundred sixteen".