205424312 has 16 divisors (see below), whose sum is σ = 391699800. Its totient is φ = 100971040.

The previous prime is 205424291. The next prime is 205424389. The reversal of 205424312 is 213424502.

It is a happy number.

205424312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217139 + ... + 218082.

Almost surely, 2^205424312 is an apocalyptic number.

It is an amenable number.

205424312 is a deficient number, since it is larger than the sum of its proper divisors (186275488).

205424312 is a wasteful number, since it uses less digits than its factorization.

205424312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435286 (or 435282 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 205424312 is about 14332.6310215536. The cubic root of 205424312 is about 590.0433866399.

Adding to 205424312 its reverse (213424502), we get a palindrome (418848814).

The spelling of 205424312 in words is "two hundred five million, four hundred twenty-four thousand, three hundred twelve".