199693242 has 32 divisors (see below), whose sum is σ = 507158400. Its totient is φ = 57055104.

The previous prime is 199693231. The next prime is 199693253. The reversal of 199693242 is 242396991.

It is a happy number.

199693242 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 (199693231) and next prime (199693253).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263767 + ... + 264522.

It is an arithmetic number, because the mean of its divisors is an integer number (15848700).

Almost surely, 2^199693242 is an apocalyptic number.

199693242 is an abundant number, since it is smaller than the sum of its proper divisors (307465158).

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

199693242 is a wasteful number, since it uses less digits than its factorization.

199693242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528307 (or 528301 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 199693242 is about 14131.2859287469. The cubic root of 199693242 is about 584.5044060392.

The spelling of 199693242 in words is "one hundred ninety-nine million, six hundred ninety-three thousand, two hundred forty-two".