205323216 has 40 divisors (see below), whose sum is σ = 606193344. Its totient is φ = 58663680.

The previous prime is 205323193. The next prime is 205323233. The reversal of 205323216 is 612323502.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305205 + ... + 305876.

Almost surely, 2^205323216 is an apocalyptic number.

It is an amenable number.

205323216 is an abundant number, since it is smaller than the sum of its proper divisors (400870128).

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

205323216 is a wasteful number, since it uses less digits than its factorization.

205323216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611099 (or 611093 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 205323216 is about 14329.1038100783. The cubic root of 205323216 is about 589.9465775626.

Adding to 205323216 its reverse (612323502), we get a palindrome (817646718).

The spelling of 205323216 in words is "two hundred five million, three hundred twenty-three thousand, two hundred sixteen".