198830280 has 256 divisors, whose sum is σ = 693411840. Its totient is φ = 45158400.

The previous prime is 198830251. The next prime is 198830297. The reversal of 198830280 is 82038891.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1759504 + ... + 1759616.

It is an arithmetic number, because the mean of its divisors is an integer number (2708640).

Almost surely, 2^198830280 is an apocalyptic number.

198830280 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 198830280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346705920).

198830280 is an abundant number, since it is smaller than the sum of its proper divisors (494581560).

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

198830280 is a wasteful number, since it uses less digits than its factorization.

198830280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 198830280 is about 14100.7191305976. The cubic root of 198830280 is about 583.6612237315.

The spelling of 198830280 in words is "one hundred ninety-eight million, eight hundred thirty thousand, two hundred eighty".