196196409 has 12 divisors (see below), whose sum is σ = 284527152. Its totient is φ = 130275000.

The previous prime is 196196393. The next prime is 196196411. The reversal of 196196409 is 904691691.

It is not a de Polignac number, because 196196409 - 2⁴ = 196196393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196196449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41167 + ... + 45684.

It is an arithmetic number, because the mean of its divisors is an integer number (23710596).

Almost surely, 2^196196409 is an apocalyptic number.

It is an amenable number.

196196409 is a deficient number, since it is larger than the sum of its proper divisors (88330743).

196196409 is a wasteful number, since it uses less digits than its factorization.

196196409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87108 (or 87105 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 196196409 is about 14007.0128507116. The cubic root of 196196409 is about 581.0725388183.

The spelling of 196196409 in words is "one hundred ninety-six million, one hundred ninety-six thousand, four hundred nine".