198383280 has 160 divisors (see below), whose sum is σ = 650958336. Its totient is φ = 49876992.

The previous prime is 198383249. The next prime is 198383281. The reversal of 198383280 is 82383891.

198383280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (198383281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457944 + ... + 458376.

Almost surely, 2^198383280 is an apocalyptic number.

198383280 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 198383280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325479168).

198383280 is an abundant number, since it is smaller than the sum of its proper divisors (452575056).

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

198383280 is a wasteful number, since it uses less digits than its factorization.

198383280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 198383280 is about 14084.8599567053. The cubic root of 198383280 is about 583.2235098465.

The spelling of 198383280 in words is "one hundred ninety-eight million, three hundred eighty-three thousand, two hundred eighty".