196162978 has 16 divisors (see below), whose sum is σ = 331349760. Its totient is φ = 86288400.

The previous prime is 196162969. The next prime is 196162979. The reversal of 196162978 is 879261691.

196162978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (196162979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143133 + ... + 144496.

It is an arithmetic number, because the mean of its divisors is an integer number (20709360).

Almost surely, 2^196162978 is an apocalyptic number.

196162978 is a deficient number, since it is larger than the sum of its proper divisors (135186782).

196162978 is a wasteful number, since it uses less digits than its factorization.

196162978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287673.

The product of its digits is 326592, while the sum is 49.

The square root of 196162978 is about 14005.8194333641. The cubic root of 196162978 is about 581.0395328804.

The spelling of 196162978 in words is "one hundred ninety-six million, one hundred sixty-two thousand, nine hundred seventy-eight".