2881116 has 96 divisors (see below), whose sum is σ = 8852480. Its totient is φ = 793152.

The previous prime is 2881097. The next prime is 2881117. The reversal of 2881116 is 6111882.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2881116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27921 + ... + 28023.

2^2881116 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 2881116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4426240).

2881116 is an abundant number, since it is smaller than the sum of its proper divisors (5971364).

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

2881116 is a wasteful number, since it uses less digits than its factorization.

2881116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 152 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 2881116 is about 1697.3850476542. The cubic root of 2881116 is about 142.2941070885.

Adding to 2881116 its reverse (6111882), we get a palindrome (8992998).

The spelling of 2881116 in words is "two million, eight hundred eighty-one thousand, one hundred sixteen".