205036236 has 18 divisors (see below), whose sum is σ = 518286132. Its totient is φ = 68345400.

The previous prime is 205036213. The next prime is 205036261. The reversal of 205036236 is 632630502.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 2847690 + ... + 2847761.

It is an arithmetic number, because the mean of its divisors is an integer number (28793674).

Almost surely, 2^205036236 is an apocalyptic number.

It is an amenable number.

205036236 is an abundant number, since it is smaller than the sum of its proper divisors (313249896).

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

205036236 is a wasteful number, since it uses less digits than its factorization.

205036236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695461 (or 5695456 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 205036236 is about 14319.0864233721. The cubic root of 205036236 is about 589.6715935454.

Adding to 205036236 its reverse (632630502), we get a palindrome (837666738).

The spelling of 205036236 in words is "two hundred five million, thirty-six thousand, two hundred thirty-six".