204343434 has 48 divisors (see below), whose sum is σ = 475832448. Its totient is φ = 63144576.

The previous prime is 204343411. The next prime is 204343453. The reversal of 204343434 is 434343402.

204343434 is a modest number, since divided by 343434 gives 204 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 204343398 and 204343407.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15519 + ... + 25485.

It is an arithmetic number, because the mean of its divisors is an integer number (9913176).

Almost surely, 2^204343434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204343434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237916224).

204343434 is an abundant number, since it is smaller than the sum of its proper divisors (271489014).

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

204343434 is a wasteful number, since it uses less digits than its factorization.

204343434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10059 (or 10056 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 204343434 is about 14294.8743960904. The cubic root of 204343434 is about 589.0066921296.

Adding to 204343434 its reverse (434343402), we get a palindrome (638686836).

The spelling of 204343434 in words is "two hundred four million, three hundred forty-three thousand, four hundred thirty-four".