204642206 has 16 divisors (see below), whose sum is σ = 309005280. Its totient is φ = 101643360.

The previous prime is 204642197. The next prime is 204642211. The reversal of 204642206 is 602246402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301940 + ... + 302616.

It is an arithmetic number, because the mean of its divisors is an integer number (19312830).

Almost surely, 2^204642206 is an apocalyptic number.

204642206 is a deficient number, since it is larger than the sum of its proper divisors (104363074).

204642206 is a wasteful number, since it uses less digits than its factorization.

204642206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204642206 is about 14305.3208981833. The cubic root of 204642206 is about 589.2936159731.

Adding to 204642206 its reverse (602246402), we get a palindrome (806888608).

The spelling of 204642206 in words is "two hundred four million, six hundred forty-two thousand, two hundred six".