204352434 has 144 divisors (see below), whose sum is σ = 542640384. Its totient is φ = 55036800.

The previous prime is 204352433. The next prime is 204352441. The reversal of 204352434 is 434253402.

204352434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204352398 and 204352407.

It is not an unprimeable number, because it can be changed into a prime (204352433) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1037224 + ... + 1037420.

It is an arithmetic number, because the mean of its divisors is an integer number (3768336).

Almost surely, 2^204352434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204352434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271320192).

204352434 is an abundant number, since it is smaller than the sum of its proper divisors (338287950).

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

204352434 is a wasteful number, since it uses less digits than its factorization.

204352434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 257 counting only the distinct ones).

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

The square root of 204352434 is about 14295.1891907732. The cubic root of 204352434 is about 589.0153393080.

The spelling of 204352434 in words is "two hundred four million, three hundred fifty-two thousand, four hundred thirty-four".