190666 has 8 divisors (see below), whose sum is σ = 326880.
Its totient is φ = 81708.
The previous prime is 190657. The next prime is 190667. The reversal of 190666 is 666091.
It is a happy number.
190666 is digitally balanced in base 2, 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.
190666 is a modest number, since divided by 666 gives 190 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (190667) 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, 6796 + ... + 6823.
It is an arithmetic number, because the mean of its divisors is an integer number (40860).
2190666 is an apocalyptic number.
190666 is a deficient number, since it is larger than the sum of its proper divisors (136214).
190666 is a wasteful number, since it uses less digits than its factorization.
190666 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13628.
The product of its (nonzero) digits is 1944, while the sum is 28.
The square root of 190666 is about 436.6531804533.
The cubic root of 190666 is about 57.5560637813.
The spelling of 190666 in words is "one hundred ninety thousand, six hundred sixty-six".