193488668 has 12 divisors (see below), whose sum is σ = 338798712. Its totient is φ = 96689040.

The previous prime is 193488601. The next prime is 193488677. The reversal of 193488668 is 866884391.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5378 + ... + 20393.

It is an arithmetic number, because the mean of its divisors is an integer number (28233226).

Almost surely, 2^193488668 is an apocalyptic number.

It is an amenable number.

193488668 is a deficient number, since it is larger than the sum of its proper divisors (145310044).

193488668 is a wasteful number, since it uses less digits than its factorization.

193488668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27652 (or 27650 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 193488668 is about 13910.0204169512. The cubic root of 193488668 is about 578.3869847733.

The spelling of 193488668 in words is "one hundred ninety-three million, four hundred eighty-eight thousand, six hundred sixty-eight".