2198198 has 8 divisors (see below), whose sum is σ = 3313560. Its totient is φ = 1093680.

The previous prime is 2198191. The next prime is 2198201. The reversal of 2198198 is 8918912.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (414195).

2^2198198 is an apocalyptic number.

2198198 is a deficient number, since it is larger than the sum of its proper divisors (1115362).

2198198 is a wasteful number, since it uses less digits than its factorization.

2198198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422.

The product of its digits is 10368, while the sum is 38.

The square root of 2198198 is about 1482.6321189021. The cubic root of 2198198 is about 130.0236248977.

The spelling of 2198198 in words is "two million, one hundred ninety-eight thousand, one hundred ninety-eight".