190668 has 12 divisors (see below), whose sum is σ = 444920. Its totient is φ = 63552.

The previous prime is 190667. The next prime is 190669. The reversal of 190668 is 866091.

190668 is digitally balanced in base 2, 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 (190667) and next prime (190669).

It is a tau number, because it is divible by the number of its divisors (12).

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, 7933 + ... + 7956.

2¹⁹⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

190668 is an abundant number, since it is smaller than the sum of its proper divisors (254252).

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

190668 is a wasteful number, since it uses less digits than its factorization.

190668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896 (or 15894 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 190668 is about 436.6554705944. The cubic root of 190668 is about 57.5562650263.

It can be divided in two parts, 190 and 668, that added together give a palindrome (858).

The spelling of 190668 in words is "one hundred ninety thousand, six hundred sixty-eight".