199868280 has 32 divisors (see below), whose sum is σ = 599605200. Its totient is φ = 53298176.

The previous prime is 199868267. The next prime is 199868293. The reversal of 199868280 is 82868991.

199868280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (199868267) and next prime (199868293).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 832665 + ... + 832904.

Almost surely, 2^199868280 is an apocalyptic number.

199868280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199868280 is an abundant number, since it is smaller than the sum of its proper divisors (399736920).

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

199868280 is a wasteful number, since it uses less digits than its factorization.

199868280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665583 (or 1665579 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 199868280 is about 14137.4778514415. The cubic root of 199868280 is about 584.6751355756.

The spelling of 199868280 in words is "one hundred ninety-nine million, eight hundred sixty-eight thousand, two hundred eighty".