204122430 has 96 divisors (see below), whose sum is σ = 554770944. Its totient is φ = 53999136.

The previous prime is 204122423. The next prime is 204122449. The reversal of 204122430 is 34221402.

204122430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405559 + ... + 406061.

It is an arithmetic number, because the mean of its divisors is an integer number (5778864).

Almost surely, 2^204122430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204122430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277385472).

204122430 is an abundant number, since it is smaller than the sum of its proper divisors (350648514).

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

204122430 is a wasteful number, since it uses less digits than its factorization.

204122430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204122430 is about 14287.1421215021. The cubic root of 204122430 is about 588.7942723006.

Adding to 204122430 its reverse (34221402), we get a palindrome (238343832).

The spelling of 204122430 in words is "two hundred four million, one hundred twenty-two thousand, four hundred thirty".