204164198 has 16 divisors (see below), whose sum is σ = 350234880. Its totient is φ = 87439176.

The previous prime is 204164189. The next prime is 204164201. The reversal of 204164198 is 891461402.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20873 + ... + 29051.

It is an arithmetic number, because the mean of its divisors is an integer number (21889680).

Almost surely, 2^204164198 is an apocalyptic number.

204164198 is a deficient number, since it is larger than the sum of its proper divisors (146070682).

204164198 is a wasteful number, since it uses less digits than its factorization.

204164198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 204164198 is about 14288.6037806358. The cubic root of 204164198 is about 588.8344297067.

The spelling of 204164198 in words is "two hundred four million, one hundred sixty-four thousand, one hundred ninety-eight".