2205054420 has 48 divisors (see below), whose sum is σ = 6266315328. Its totient is φ = 579237120.

The previous prime is 2205054409. The next prime is 2205054421. The reversal of 2205054420 is 244505022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205054421) 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 15 ways as a sum of consecutive naturals, for example, 270241 + ... + 278280.

It is an arithmetic number, because the mean of its divisors is an integer number (130548236).

Almost surely, 2^2205054420 is an apocalyptic number.

2205054420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205054420 is an abundant number, since it is smaller than the sum of its proper divisors (4061260908).

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

2205054420 is a wasteful number, since it uses less digits than its factorization.

2205054420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548600 (or 548598 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2205054420 is about 46958.0069849648. The cubic root of 2205054420 is about 1301.5867055681.

Adding to 2205054420 its reverse (244505022), we get a palindrome (2449559442).

The spelling of 2205054420 in words is "two billion, two hundred five million, fifty-four thousand, four hundred twenty".