198028174 has 4 divisors (see below), whose sum is σ = 297042264. Its totient is φ = 99014086.

The previous prime is 198028147. The next prime is 198028213. The reversal of 198028174 is 471820891.

It is a happy number.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49507042 + ... + 49507045.

It is an arithmetic number, because the mean of its divisors is an integer number (74260566).

Almost surely, 2^198028174 is an apocalyptic number.

198028174 is a deficient number, since it is larger than the sum of its proper divisors (99014090).

198028174 is an equidigital number, since it uses as much as digits as its factorization.

198028174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99014089.

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 198028174 is about 14072.2483633569. The cubic root of 198028174 is about 582.8753120480.

The spelling of 198028174 in words is "one hundred ninety-eight million, twenty-eight thousand, one hundred seventy-four".