2195688 has 32 divisors (see below), whose sum is σ = 5988960. Its totient is φ = 665280.

The previous prime is 2195681. The next prime is 2195701. The reversal of 2195688 is 8865912.

It is not an unprimeable number, because it can be changed into a prime (2195681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (187155).

2^2195688 is an apocalyptic number.

It is an amenable number.

2195688 is an abundant number, since it is smaller than the sum of its proper divisors (3793272).

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

2195688 is a wasteful number, since it uses less digits than its factorization.

2195688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337 (or 8333 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 2195688 is about 1481.7854095651. The cubic root of 2195688 is about 129.9741171351.

The spelling of 2195688 in words is "two million, one hundred ninety-five thousand, six hundred eighty-eight".