204890575 has 12 divisors (see below), whose sum is σ = 255017160. Its totient is φ = 163297760.

The previous prime is 204890573. The next prime is 204890611. The reversal of 204890575 is 575098402.

It is not a de Polignac number, because 204890575 - 2¹ = 204890573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204890573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8509 + ... + 21958.

It is an arithmetic number, because the mean of its divisors is an integer number (21251430).

Almost surely, 2^204890575 is an apocalyptic number.

204890575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

204890575 is a deficient number, since it is larger than the sum of its proper divisors (50126585).

204890575 is a wasteful number, since it uses less digits than its factorization.

204890575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30746 (or 30741 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 204890575 is about 14313.9992664524. Note that the first 3 decimals coincide. The cubic root of 204890575 is about 589.5319231089.

The spelling of 204890575 in words is "two hundred four million, eight hundred ninety thousand, five hundred seventy-five".