2195718 has 32 divisors (see below), whose sum is σ = 5239296. Its totient is φ = 599808.

The previous prime is 2195717. The next prime is 2195723. The reversal of 2195718 is 8175912.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171 + ... + 2102.

It is an arithmetic number, because the mean of its divisors is an integer number (163728).

2^2195718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2195718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619648).

2195718 is an abundant number, since it is smaller than the sum of its proper divisors (3043578).

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

2195718 is a wasteful number, since it uses less digits than its factorization.

2195718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308.

The product of its digits is 5040, while the sum is 33.

The square root of 2195718 is about 1481.7955324538. The cubic root of 2195718 is about 129.9747090840.

The spelling of 2195718 in words is "two million, one hundred ninety-five thousand, seven hundred eighteen".