2205712140 has 24 divisors (see below), whose sum is σ = 6175994160. Its totient is φ = 588189888.

The previous prime is 2205712123. The next prime is 2205712169. The reversal of 2205712140 is 412175022.

2205712140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2205712140.

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, 18380875 + ... + 18380994.

It is an arithmetic number, because the mean of its divisors is an integer number (257333090).

Almost surely, 2^2205712140 is an apocalyptic number.

2205712140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205712140 is an abundant number, since it is smaller than the sum of its proper divisors (3970282020).

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

2205712140 is a wasteful number, since it uses less digits than its factorization.

2205712140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36761881 (or 36761879 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2205712140 is about 46965.0097412957. The cubic root of 2205712140 is about 1301.7161044162.

Adding to 2205712140 its reverse (412175022), we get a palindrome (2617887162).

The spelling of 2205712140 in words is "two billion, two hundred five million, seven hundred twelve thousand, one hundred forty".