2021198 has 8 divisors (see below), whose sum is σ = 3210192. Its totient is φ = 951136.

The previous prime is 2021197. The next prime is 2021203. The reversal of 2021198 is 8911202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021191) 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, 29690 + ... + 29757.

It is an arithmetic number, because the mean of its divisors is an integer number (401274).

2^2021198 is an apocalyptic number.

2021198 is a deficient number, since it is larger than the sum of its proper divisors (1188994).

2021198 is a wasteful number, since it uses less digits than its factorization.

2021198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59466.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2021198 is about 1421.6884328150. The cubic root of 2021198 is about 126.4356716471.

The spelling of 2021198 in words is "two million, twenty-one thousand, one hundred ninety-eight".