198802158 has 16 divisors (see below), whose sum is σ = 406851456. Its totient is φ = 64726200.

The previous prime is 198802139. The next prime is 198802169. The reversal of 198802158 is 851208891.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385018 + ... + 385533.

It is an arithmetic number, because the mean of its divisors is an integer number (25428216).

Almost surely, 2^198802158 is an apocalyptic number.

198802158 is an abundant number, since it is smaller than the sum of its proper divisors (208049298).

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

198802158 is a wasteful number, since it uses less digits than its factorization.

198802158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770599.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 198802158 is about 14099.7219121513. The cubic root of 198802158 is about 583.6337052958.

The spelling of 198802158 in words is "one hundred ninety-eight million, eight hundred two thousand, one hundred fifty-eight".