2204345520 has 480 divisors, whose sum is σ = 8423460864. Its totient is φ = 512870400.

The previous prime is 2204345501. The next prime is 2204345531. The reversal of 2204345520 is 255434022.

It is a happy number.

2204345520 is a `hidden beast` number, since 2 + 204 + 3 + 455 + 2 + 0 = 666.

It is a super-4 number, since 4×2204345520⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20601307 + ... + 20601413.

Almost surely, 2^2204345520 is an apocalyptic number.

2204345520 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 2204345520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4211730432).

2204345520 is an abundant number, since it is smaller than the sum of its proper divisors (6219115344).

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

2204345520 is a wasteful number, since it uses less digits than its factorization.

2204345520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2204345520 is about 46950.4581447295. The cubic root of 2204345520 is about 1301.4472088278.

Adding to 2204345520 its reverse (255434022), we get a palindrome (2459779542).

The spelling of 2204345520 in words is "two billion, two hundred four million, three hundred forty-five thousand, five hundred twenty".