204430430000 has 100 divisors (see below), whose sum is σ = 510913305408. Its totient is φ = 79134240000.

The previous prime is 204430429981. The next prime is 204430430003. The reversal of 204430430000 is 34034402.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (204430430003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19727 + ... + 639726.

Almost surely, 2^204430430000 is an apocalyptic number.

204430430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204430430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255456652704).

204430430000 is an abundant number, since it is smaller than the sum of its proper divisors (306482875408).

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

204430430000 is an equidigital number, since it uses as much as digits as its factorization.

204430430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659512 (or 659491 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 204430430000 its reverse (34034402), we get a palindrome (204464464402).

The spelling of 204430430000 in words is "two hundred four billion, four hundred thirty million, four hundred thirty thousand".