2188298 has 8 divisors (see below), whose sum is σ = 3751392. Its totient is φ = 937836.

The previous prime is 2188297. The next prime is 2188309. The reversal of 2188298 is 8928812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2188297) 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 3 ways as a sum of consecutive naturals, for example, 78140 + ... + 78167.

It is an arithmetic number, because the mean of its divisors is an integer number (468924).

2^2188298 is an apocalyptic number.

2188298 is a deficient number, since it is larger than the sum of its proper divisors (1563094).

2188298 is a wasteful number, since it uses less digits than its factorization.

2188298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156316.

The product of its digits is 18432, while the sum is 38.

The square root of 2188298 is about 1479.2896944142. The cubic root of 2188298 is about 129.8281358093.

The spelling of 2188298 in words is "two million, one hundred eighty-eight thousand, two hundred ninety-eight".