2002198 has 8 divisors (see below), whose sum is σ = 3276360. Its totient is φ = 910080.

The previous prime is 2002159. The next prime is 2002199. The reversal of 2002198 is 8912002.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 91009 = 2002198 / (2 + 0 + 0 + 2 + 1 + 9 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45483 + ... + 45526.

It is an arithmetic number, because the mean of its divisors is an integer number (409545).

2^2002198 is an apocalyptic number.

2002198 is a deficient number, since it is larger than the sum of its proper divisors (1274162).

2002198 is a wasteful number, since it uses less digits than its factorization.

2002198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91022.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2002198 is about 1414.9904593318. The cubic root of 2002198 is about 126.0382431994.

The spelling of 2002198 in words is "two million, two thousand, one hundred ninety-eight".