198928850 has 24 divisors (see below), whose sum is σ = 370379568. Its totient is φ = 79491600.

The previous prime is 198928837. The next prime is 198928859. The reversal of 198928850 is 58829891.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (198928859) 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 11 ways as a sum of consecutive naturals, for example, 92285 + ... + 94415.

It is an arithmetic number, because the mean of its divisors is an integer number (15432482).

Almost surely, 2^198928850 is an apocalyptic number.

198928850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198928850 is a deficient number, since it is larger than the sum of its proper divisors (171450718).

198928850 is a wasteful number, since it uses less digits than its factorization.

198928850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010 (or 4005 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 198928850 is about 14104.2139093251. The cubic root of 198928850 is about 583.7576577059.

The spelling of 198928850 in words is "one hundred ninety-eight million, nine hundred twenty-eight thousand, eight hundred fifty".