204226705 has 8 divisors (see below), whose sum is σ = 245196072. Its totient is φ = 163298688.

The previous prime is 204226697. The next prime is 204226709. The reversal of 204226705 is 507622402.

It can be written as a sum of positive squares in 4 ways, for example, as 104366656 + 99860049 = 10216^2 + 9993^2 .

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 204226705 - 2³ = 204226697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204226709) 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, 1837 + ... + 20293.

It is an arithmetic number, because the mean of its divisors is an integer number (30649509).

Almost surely, 2^204226705 is an apocalyptic number.

It is an amenable number.

204226705 is a deficient number, since it is larger than the sum of its proper divisors (40969367).

204226705 is a wasteful number, since it uses less digits than its factorization.

204226705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20675.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 204226705 is about 14290.7909158311. The cubic root of 204226705 is about 588.8945161771.

The spelling of 204226705 in words is "two hundred four million, two hundred twenty-six thousand, seven hundred five".