2205810860 has 96 divisors (see below), whose sum is σ = 5583416832. Its totient is φ = 722078720.

The previous prime is 2205810839. The next prime is 2205810899. The reversal of 2205810860 is 680185022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73199 + ... + 98841.

It is an arithmetic number, because the mean of its divisors is an integer number (58160592).

Almost surely, 2^2205810860 is an apocalyptic number.

2205810860 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 2205810860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2791708416).

2205810860 is an abundant number, since it is smaller than the sum of its proper divisors (3377605972).

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

2205810860 is a wasteful number, since it uses less digits than its factorization.

2205810860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25703 (or 25701 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 2205810860 is about 46966.0607247404. The cubic root of 2205810860 is about 1301.7355242208.

Adding to 2205810860 its reverse (680185022), we get a palindrome (2885995882).

The spelling of 2205810860 in words is "two billion, two hundred five million, eight hundred ten thousand, eight hundred sixty".