199907294 has 8 divisors (see below), whose sum is σ = 300539160. Its totient is φ = 99727576.

The previous prime is 199907293. The next prime is 199907317. The reversal of 199907294 is 492709991.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199907291) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111929 + ... + 113700.

It is an arithmetic number, because the mean of its divisors is an integer number (37567395).

Almost surely, 2^199907294 is an apocalyptic number.

199907294 is a deficient number, since it is larger than the sum of its proper divisors (100631866).

199907294 is a wasteful number, since it uses less digits than its factorization.

199907294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226074.

The product of its (nonzero) digits is 367416, while the sum is 50.

The square root of 199907294 is about 14138.8575917575. The cubic root of 199907294 is about 584.7131756816.

The spelling of 199907294 in words is "one hundred ninety-nine million, nine hundred seven thousand, two hundred ninety-four".