205875730 has 16 divisors (see below), whose sum is σ = 371615040. Its totient is φ = 82119472.

The previous prime is 205875713. The next prime is 205875731. The reversal of 205875730 is 37578502.

It is a self number, because there is not a number n which added to its sum of digits gives 205875730.

It is not an unprimeable number, because it can be changed into a prime (205875731) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25084 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (23225940).

Almost surely, 2^205875730 is an apocalyptic number.

205875730 is a deficient number, since it is larger than the sum of its proper divisors (165739310).

205875730 is a wasteful number, since it uses less digits than its factorization.

205875730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57713.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 205875730 is about 14348.3702907334. The cubic root of 205875730 is about 590.4752753741.

The spelling of 205875730 in words is "two hundred five million, eight hundred seventy-five thousand, seven hundred thirty".