204117258 has 8 divisors (see below), whose sum is σ = 408234528. Its totient is φ = 68039084.

The previous prime is 204117223. The next prime is 204117269. The reversal of 204117258 is 852711402.

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

204117258 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17009766 + ... + 17009777.

It is an arithmetic number, because the mean of its divisors is an integer number (51029316).

Almost surely, 2^204117258 is an apocalyptic number.

204117258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204117258 is a wasteful number, since it uses less digits than its factorization.

204117258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34019548.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 204117258 is about 14286.9611184464. The cubic root of 204117258 is about 588.7892993542.

The spelling of 204117258 in words is "two hundred four million, one hundred seventeen thousand, two hundred fifty-eight".