199305438 has 8 divisors (see below), whose sum is σ = 398610888. Its totient is φ = 66435144.

The previous prime is 199305437. The next prime is 199305451. The reversal of 199305438 is 834503991.

It is a sphenic number, since it is the product of 3 distinct primes.

199305438 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 199305438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199305437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16608781 + ... + 16608792.

It is an arithmetic number, because the mean of its divisors is an integer number (49826361).

Almost surely, 2^199305438 is an apocalyptic number.

199305438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

199305438 is a wasteful number, since it uses less digits than its factorization.

199305438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33217578.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 199305438 is about 14117.5577916295. The cubic root of 199305438 is about 584.1257919277.

The spelling of 199305438 in words is "one hundred ninety-nine million, three hundred five thousand, four hundred thirty-eight".