2688198 has 16 divisors (see below), whose sum is σ = 5522160. Its totient is φ = 871776.

The previous prime is 2688187. The next prime is 2688221. The reversal of 2688198 is 8918862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5833 + ... + 6276.

It is an arithmetic number, because the mean of its divisors is an integer number (345135).

2^2688198 is an apocalyptic number.

2688198 is an abundant number, since it is smaller than the sum of its proper divisors (2833962).

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

2688198 is a wasteful number, since it uses less digits than its factorization.

2688198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12151.

The product of its digits is 55296, while the sum is 42.

The square root of 2688198 is about 1639.5725052586. The cubic root of 2688198 is about 139.0444796664.

The spelling of 2688198 in words is "two million, six hundred eighty-eight thousand, one hundred ninety-eight".