2198194 has 4 divisors (see below), whose sum is σ = 3297294. Its totient is φ = 1099096.

The previous prime is 2198191. The next prime is 2198201. The reversal of 2198194 is 4918912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 133225 = 1437^2 + 365^2 .

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 as a sum of consecutive naturals, namely, 549547 + ... + 549550.

2^2198194 is an apocalyptic number.

2198194 is a deficient number, since it is larger than the sum of its proper divisors (1099100).

2198194 is a wasteful number, since it uses less digits than its factorization.

2198194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099099.

The product of its digits is 5184, while the sum is 34.

The square root of 2198194 is about 1482.6307699491. The cubic root of 2198194 is about 130.0235460309.

The spelling of 2198194 in words is "two million, one hundred ninety-eight thousand, one hundred ninety-four".