199820214 has 24 divisors (see below), whose sum is σ = 472302792. Its totient is φ = 60551520.

The previous prime is 199820213. The next prime is 199820249. The reversal of 199820214 is 412028991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199820213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504399 + ... + 504794.

It is an arithmetic number, because the mean of its divisors is an integer number (19679283).

Almost surely, 2^199820214 is an apocalyptic number.

199820214 is an abundant number, since it is smaller than the sum of its proper divisors (272482578).

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

199820214 is a wasteful number, since it uses less digits than its factorization.

199820214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009212 (or 1009209 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 199820214 is about 14135.7777996119. Note that the first 4 decimals coincide. The cubic root of 199820214 is about 584.6282626247.

The spelling of 199820214 in words is "one hundred ninety-nine million, eight hundred twenty thousand, two hundred fourteen".