It is a sphenic number, since it is the product of 3 distinct primes.
199999974 is an admirable number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2199999974 is an apocalyptic number.
199999974 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.
199999974 is a wasteful number, since it uses less digits than its factorization.
199999974 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33333334.
The square root of 199999974 is about 14142.1347044921. The cubic root of 199999974 is about 584.8035223011.
The spelling of 199999974 in words is "one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-four".