204504442340 has 96 divisors (see below), whose sum is σ = 474960979584. Its totient is φ = 73345167360.

The previous prime is 204504442321. The next prime is 204504442349. The reversal of 204504442340 is 43244405402.

It is a junction number, because it is equal to n+sod(n) for n = 204504442297 and 204504442306.

It is not an unprimeable number, because it can be changed into a prime (204504442349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6236267 + ... + 6268973.

It is an arithmetic number, because the mean of its divisors is an integer number (4947510204).

Almost surely, 2^204504442340 is an apocalyptic number.

204504442340 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 204504442340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237480489792).

204504442340 is an abundant number, since it is smaller than the sum of its proper divisors (270456537244).

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

204504442340 is a wasteful number, since it uses less digits than its factorization.

204504442340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33117 (or 33115 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 204504442340 its reverse (43244405402), we get a palindrome (247748847742).

The spelling of 204504442340 in words is "two hundred four billion, five hundred four million, four hundred forty-two thousand, three hundred forty".