198027900 has 324 divisors, whose sum is σ = 768982032. Its totient is φ = 41610240.

The previous prime is 198027881. The next prime is 198027911. The reversal of 198027900 is 9720891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 107 ways as a sum of consecutive naturals, for example, 4605279 + ... + 4605321.

Almost surely, 2^198027900 is an apocalyptic number.

198027900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198027900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384491016).

198027900 is an abundant number, since it is smaller than the sum of its proper divisors (570954132).

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

198027900 is a wasteful number, since it uses less digits than its factorization.

198027900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 198027900 is about 14072.2386278801. The cubic root of 198027900 is about 582.8750432178.

The spelling of 198027900 in words is "one hundred ninety-eight million, twenty-seven thousand, nine hundred".