205325634 has 32 divisors (see below), whose sum is σ = 418723200. Its totient is φ = 67104000.

The previous prime is 205325629. The next prime is 205325639. The reversal of 205325634 is 436523502.

It is an interprime number because it is at equal distance from previous prime (205325629) and next prime (205325639).

It is not an unprimeable number, because it can be changed into a prime (205325639) 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 15 ways as a sum of consecutive naturals, for example, 146067 + ... + 147465.

It is an arithmetic number, because the mean of its divisors is an integer number (13085100).

Almost surely, 2^205325634 is an apocalyptic number.

205325634 is an abundant number, since it is smaller than the sum of its proper divisors (213397566).

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

205325634 is a wasteful number, since it uses less digits than its factorization.

205325634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 205325634 is about 14329.1881835643. The cubic root of 205325634 is about 589.9488933995.

The spelling of 205325634 in words is "two hundred five million, three hundred twenty-five thousand, six hundred thirty-four".