205021232 has 20 divisors (see below), whose sum is σ = 427785120. Its totient is φ = 94625088.

The previous prime is 205021231. The next prime is 205021277. The reversal of 205021232 is 232120502.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 205021232.

It is not an unprimeable number, because it can be changed into a prime (205021231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492632 + ... + 493047.

It is an arithmetic number, because the mean of its divisors is an integer number (21389256).

Almost surely, 2^205021232 is an apocalyptic number.

It is an amenable number.

205021232 is an abundant number, since it is smaller than the sum of its proper divisors (222763888).

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

205021232 is a wasteful number, since it uses less digits than its factorization.

205021232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985700 (or 985694 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 205021232 is about 14318.5624976811. The cubic root of 205021232 is about 589.6572096678.

Adding to 205021232 its reverse (232120502), we get a palindrome (437141734).

The spelling of 205021232 in words is "two hundred five million, twenty-one thousand, two hundred thirty-two".