205224312 has 32 divisors (see below), whose sum is σ = 513752400. Its totient is φ = 68315904.

The previous prime is 205224269. The next prime is 205224317. The reversal of 205224312 is 213422502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205224317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13764 + ... + 24492.

Almost surely, 2^205224312 is an apocalyptic number.

It is an amenable number.

205224312 is an abundant number, since it is smaller than the sum of its proper divisors (308528088).

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

205224312 is a wasteful number, since it uses less digits than its factorization.

205224312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11535 (or 11531 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 205224312 is about 14325.6522364603. The cubic root of 205224312 is about 589.8518367783.

Adding to 205224312 its reverse (213422502), we get a palindrome (418646814).

The spelling of 205224312 in words is "two hundred five million, two hundred twenty-four thousand, three hundred twelve".