204344320 has 88 divisors (see below), whose sum is σ = 496094544. Its totient is φ = 80756736.

The previous prime is 204344279. The next prime is 204344333. The reversal of 204344320 is 23443402.

It is a super-2 number, since 2×204344320² = 83513202232524800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204344291 and 204344300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547654 + ... + 548026.

It is an arithmetic number, because the mean of its divisors is an integer number (5637438).

Almost surely, 2^204344320 is an apocalyptic number.

204344320 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 204344320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248047272).

204344320 is an abundant number, since it is smaller than the sum of its proper divisors (291750224).

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

204344320 is a wasteful number, since it uses less digits than its factorization.

204344320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 204344320 is about 14294.9053861857. The cubic root of 204344320 is about 589.0075434075.

Adding to 204344320 its reverse (23443402), we get a palindrome (227787722).

The spelling of 204344320 in words is "two hundred four million, three hundred forty-four thousand, three hundred twenty".