198227380 has 48 divisors (see below), whose sum is σ = 471905280. Its totient is φ = 69337728.

The previous prime is 198227371. The next prime is 198227401. The reversal of 198227380 is 83722891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15124 + ... + 25003.

It is an arithmetic number, because the mean of its divisors is an integer number (9831360).

Almost surely, 2^198227380 is an apocalyptic number.

198227380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198227380 is an abundant number, since it is smaller than the sum of its proper divisors (273677900).

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

198227380 is a wasteful number, since it uses less digits than its factorization.

198227380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40168 (or 40166 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 198227380 is about 14079.3245576626. The cubic root of 198227380 is about 583.0706939214.

The spelling of 198227380 in words is "one hundred ninety-eight million, two hundred twenty-seven thousand, three hundred eighty".