204420806 has 8 divisors (see below), whose sum is σ = 308237184. Its totient is φ = 101675080.

The previous prime is 204420773. The next prime is 204420833. The reversal of 204420806 is 608024402.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267185 + ... + 267948.

It is an arithmetic number, because the mean of its divisors is an integer number (38529648).

Almost surely, 2^204420806 is an apocalyptic number.

204420806 is a deficient number, since it is larger than the sum of its proper divisors (103816378).

204420806 is a wasteful number, since it uses less digits than its factorization.

204420806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535326.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 204420806 is about 14297.5804246733. The cubic root of 204420806 is about 589.0810226725.

The spelling of 204420806 in words is "two hundred four million, four hundred twenty thousand, eight hundred six".