998000188 has 24 divisors (see below), whose sum is σ = 1794270240. Its totient is φ = 485422080.

The previous prime is 998000177. The next prime is 998000189. The reversal of 998000188 is 881000899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998000189) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 49273 + ... + 66511.

It is an arithmetic number, because the mean of its divisors is an integer number (74761260).

Almost surely, 2^998000188 is an apocalyptic number.

It is an amenable number.

998000188 is a deficient number, since it is larger than the sum of its proper divisors (796270052).

998000188 is a wasteful number, since it uses less digits than its factorization.

998000188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17637 (or 17635 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 998000188 is about 31591.1409733805. The cubic root of 998000188 is about 999.3329511448.

The spelling of 998000188 in words is "nine hundred ninety-eight million, one hundred eighty-eight", and thus it is an aban number.