197320266 has 192 divisors, whose sum is σ = 546981120. Its totient is φ = 52272000.

The previous prime is 197320247. The next prime is 197320271. The reversal of 197320266 is 662023791.

197320266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197320266.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1953616 + ... + 1953716.

It is an arithmetic number, because the mean of its divisors is an integer number (2848860).

Almost surely, 2^197320266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197320266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273490560).

197320266 is an abundant number, since it is smaller than the sum of its proper divisors (349660854).

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

197320266 is a wasteful number, since it uses less digits than its factorization.

197320266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 197320266 is about 14047.0732182900. The cubic root of 197320266 is about 582.1799316127.

The spelling of 197320266 in words is "one hundred ninety-seven million, three hundred twenty thousand, two hundred sixty-six".