205324434 has 24 divisors (see below), whose sum is σ = 508422720. Its totient is φ = 58664088.

The previous prime is 205324421. The next prime is 205324463. The reversal of 205324434 is 434423502.

205324434 is a `hidden beast` number, since 205 + 3 + 24 + 434 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 205324398 and 205324407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814654 + ... + 814905.

It is an arithmetic number, because the mean of its divisors is an integer number (21184280).

Almost surely, 2^205324434 is an apocalyptic number.

205324434 is an abundant number, since it is smaller than the sum of its proper divisors (303098286).

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

205324434 is a wasteful number, since it uses less digits than its factorization.

205324434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629574 (or 1629571 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 205324434 is about 14329.1463109286. The cubic root of 205324434 is about 589.9477441031.

Adding to 205324434 its reverse (434423502), we get a palindrome (639747936).

The spelling of 205324434 in words is "two hundred five million, three hundred twenty-four thousand, four hundred thirty-four".