220804109 has 8 divisors (see below), whose sum is σ = 234181440. Its totient is φ = 207470016.

The previous prime is 220804093. The next prime is 220804121. The reversal of 220804109 is 901408022.

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 220804109 - 2⁴ = 220804093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220804139) 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, 32 + ... + 21014.

It is an arithmetic number, because the mean of its divisors is an integer number (29272680).

Almost surely, 2^220804109 is an apocalyptic number.

It is an amenable number.

220804109 is a deficient number, since it is larger than the sum of its proper divisors (13377331).

220804109 is a wasteful number, since it uses less digits than its factorization.

220804109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21619.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 220804109 is about 14859.4787593643. The cubic root of 220804109 is about 604.4156724160.

The spelling of 220804109 in words is "two hundred twenty million, eight hundred four thousand, one hundred nine".