198299800 has 24 divisors (see below), whose sum is σ = 461047500. Its totient is φ = 79319840.

The previous prime is 198299791. The next prime is 198299807. The reversal of 198299800 is 8992891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198299807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495550 + ... + 495949.

Almost surely, 2^198299800 is an apocalyptic number.

198299800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198299800 is an abundant number, since it is smaller than the sum of its proper divisors (262747700).

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

198299800 is a wasteful number, since it uses less digits than its factorization.

198299800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991515 (or 991506 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 198299800 is about 14081.8961791372. The cubic root of 198299800 is about 583.1416912419.

The spelling of 198299800 in words is "one hundred ninety-eight million, two hundred ninety-nine thousand, eight hundred".