204234423040 has 144 divisors (see below), whose sum is σ = 524672316000. Its totient is φ = 75933351936.

The previous prime is 204234422957. The next prime is 204234423053. The reversal of 204234423040 is 40324432402.

It is a happy number.

204234423040 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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209736 + ... + 1368184.

It is an arithmetic number, because the mean of its divisors is an integer number (3643557750).

Almost surely, 2^204234423040 is an apocalyptic number.

204234423040 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 204234423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262336158000).

204234423040 is an abundant number, since it is smaller than the sum of its proper divisors (320437892960).

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

204234423040 is a wasteful number, since it uses less digits than its factorization.

204234423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158542 (or 158528 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 204234423040 its reverse (40324432402), we get a palindrome (244558855442).

The spelling of 204234423040 in words is "two hundred four billion, two hundred thirty-four million, four hundred twenty-three thousand, forty".