204605434 has 24 divisors (see below), whose sum is σ = 339028704. Its totient is φ = 92538600.

The previous prime is 204605417. The next prime is 204605441. The reversal of 204605434 is 434506402.

204605434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 49059 + ... + 53065.

It is an arithmetic number, because the mean of its divisors is an integer number (14126196).

Almost surely, 2^204605434 is an apocalyptic number.

204605434 is a deficient number, since it is larger than the sum of its proper divisors (134423270).

204605434 is a wasteful number, since it uses less digits than its factorization.

204605434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242 (or 4231 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 204605434 is about 14304.0355844076. The cubic root of 204605434 is about 589.2583172871.

The spelling of 204605434 in words is "two hundred four million, six hundred five thousand, four hundred thirty-four".