196221306 has 32 divisors (see below), whose sum is σ = 398684160. Its totient is φ = 64372464.

The previous prime is 196221301. The next prime is 196221313. The reversal of 196221306 is 603122691.

It is not an unprimeable number, because it can be changed into a prime (196221301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238011 + ... + 238833.

It is an arithmetic number, because the mean of its divisors is an integer number (12458880).

Almost surely, 2^196221306 is an apocalyptic number.

196221306 is an abundant number, since it is smaller than the sum of its proper divisors (202462854).

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

196221306 is a wasteful number, since it uses less digits than its factorization.

196221306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 196221306 is about 14007.9015559077. The cubic root of 196221306 is about 581.0971168270.

Adding to 196221306 its reverse (603122691), we get a palindrome (799343997).

The spelling of 196221306 in words is "one hundred ninety-six million, two hundred twenty-one thousand, three hundred six".