199412718 has 8 divisors (see below), whose sum is σ = 398825448. Its totient is φ = 66470904.

The previous prime is 199412699. The next prime is 199412747. The reversal of 199412718 is 817214991.

199412718 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

199412718 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 199412718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16617721 + ... + 16617732.

It is an arithmetic number, because the mean of its divisors is an integer number (49853181).

Almost surely, 2^199412718 is an apocalyptic number.

199412718 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.

199412718 is a wasteful number, since it uses less digits than its factorization.

199412718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33235458.

The product of its digits is 36288, while the sum is 42.

The square root of 199412718 is about 14121.3568045001. The cubic root of 199412718 is about 584.2305787905.

The spelling of 199412718 in words is "one hundred ninety-nine million, four hundred twelve thousand, seven hundred eighteen".