2205231860 has 24 divisors (see below), whose sum is σ = 4987217256. Its totient is φ = 814239360.

The previous prime is 2205231851. The next prime is 2205231893. The reversal of 2205231860 is 681325022.

It can be written as a sum of positive squares in 4 ways, for example, as 91623184 + 2113608676 = 9572^2 + 45974^2 .

It is a congruent number.

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, 4240571 + ... + 4241090.

It is an arithmetic number, because the mean of its divisors is an integer number (207800719).

Almost surely, 2^2205231860 is an apocalyptic number.

2205231860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205231860 is an abundant number, since it is smaller than the sum of its proper divisors (2781985396).

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

2205231860 is a wasteful number, since it uses less digits than its factorization.

2205231860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481683 (or 8481681 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2205231860 is about 46959.8962946044. The cubic root of 2205231860 is about 1301.6216173823.

Adding to 2205231860 its reverse (681325022), we get a palindrome (2886556882).

The spelling of 2205231860 in words is "two billion, two hundred five million, two hundred thirty-one thousand, eight hundred sixty".