2028198 has 8 divisors (see below), whose sum is σ = 4056408. Its totient is φ = 676064.

The previous prime is 2028197. The next prime is 2028199. The reversal of 2028198 is 8918202.

It is an interprime number because it is at equal distance from previous prime (2028197) and next prime (2028199).

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

2028198 is an admirable number.

It is a super-2 number, since 2×2028198² = 8227174254408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169011 + ... + 169022.

It is an arithmetic number, because the mean of its divisors is an integer number (507051).

2^2028198 is an apocalyptic number.

2028198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2028198 is a wasteful number, since it uses less digits than its factorization.

2028198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338038.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2028198 is about 1424.1481664490. The cubic root of 2028198 is about 126.5814647088.

The spelling of 2028198 in words is "two million, twenty-eight thousand, one hundred ninety-eight".