220196809 has 8 divisors (see below), whose sum is σ = 251875008. Its totient is φ = 188574000.

The previous prime is 220196783. The next prime is 220196827. The reversal of 220196809 is 908691022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220196809 - 2⁵ = 220196777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220196839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4942 + ... + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (31484376).

Almost surely, 2^220196809 is an apocalyptic number.

It is an amenable number.

220196809 is a deficient number, since it is larger than the sum of its proper divisors (31678199).

220196809 is a wasteful number, since it uses less digits than its factorization.

220196809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 220196809 is about 14839.0299211236. The cubic root of 220196809 is about 603.8610349790.

The spelling of 220196809 in words is "two hundred twenty million, one hundred ninety-six thousand, eight hundred nine".