204842859 has 8 divisors (see below), whose sum is σ = 294133392. Its totient is φ = 126057120.

The previous prime is 204842831. The next prime is 204842861. The reversal of 204842859 is 958248402.

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

It is not a de Polignac number, because 204842859 - 2⁷ = 204842731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204842859.

It is not an unprimeable number, because it can be changed into a prime (204842459) 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, 2626152 + ... + 2626229.

It is an arithmetic number, because the mean of its divisors is an integer number (36766674).

Almost surely, 2^204842859 is an apocalyptic number.

204842859 is a deficient number, since it is larger than the sum of its proper divisors (89290533).

204842859 is a wasteful number, since it uses less digits than its factorization.

204842859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252397.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 204842859 is about 14312.3324094992. The cubic root of 204842859 is about 589.4861551192.

The spelling of 204842859 in words is "two hundred four million, eight hundred forty-two thousand, eight hundred fifty-nine".