204724906 has 8 divisors (see below), whose sum is σ = 312121764. Its totient is φ = 100684320.

The previous prime is 204724873. The next prime is 204724907. The reversal of 204724906 is 609427402.

It can be written as a sum of positive squares in 2 ways, for example, as 171374281 + 33350625 = 13091^2 + 5775^2 .

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

It is not an unprimeable number, because it can be changed into a prime (204724907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 838915 + ... + 839158.

Almost surely, 2^204724906 is an apocalyptic number.

204724906 is a deficient number, since it is larger than the sum of its proper divisors (107396858).

204724906 is a wasteful number, since it uses less digits than its factorization.

204724906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678136.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 204724906 is about 14308.2111390628. The cubic root of 204724906 is about 589.3729870530.

The spelling of 204724906 in words is "two hundred four million, seven hundred twenty-four thousand, nine hundred six".