196078668 has 12 divisors (see below), whose sum is σ = 457516920. Its totient is φ = 65359552.

The previous prime is 196078661. The next prime is 196078679. The reversal of 196078668 is 866870691.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 196078668.

It is not an unprimeable number, because it can be changed into a prime (196078661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8169933 + ... + 8169956.

It is an arithmetic number, because the mean of its divisors is an integer number (38126410).

Almost surely, 2^196078668 is an apocalyptic number.

It is an amenable number.

196078668 is an abundant number, since it is smaller than the sum of its proper divisors (261438252).

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

196078668 is a wasteful number, since it uses less digits than its factorization.

196078668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16339896 (or 16339894 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 196078668 is about 14002.8092895676. The cubic root of 196078668 is about 580.9562781919.

The spelling of 196078668 in words is "one hundred ninety-six million, seventy-eight thousand, six hundred sixty-eight".