198028170 has 24 divisors (see below), whose sum is σ = 514873476. Its totient is φ = 52807488.

The previous prime is 198028147. The next prime is 198028213. The reversal of 198028170 is 71820891.

It can be written as a sum of positive squares in 2 ways, for example, as 180714249 + 17313921 = 13443^2 + 4161^2 .

It is a super-2 number, since 2×198028170² = 78430312227097800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100067 + ... + 1100246.

Almost surely, 2^198028170 is an apocalyptic number.

198028170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198028170 is an abundant number, since it is smaller than the sum of its proper divisors (316845306).

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

198028170 is a wasteful number, since it uses less digits than its factorization.

198028170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200326 (or 2200323 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 198028170 is about 14072.2482212332. The cubic root of 198028170 is about 582.8753081235.

It can be divided in two parts, 19802 and 8170, that added together give a palindrome (27972).

The spelling of 198028170 in words is "one hundred ninety-eight million, twenty-eight thousand, one hundred seventy".