2205643530 has 16 divisors (see below), whose sum is σ = 5293544544. Its totient is φ = 588171600.

The previous prime is 2205643513. The next prime is 2205643543. The reversal of 2205643530 is 353465022.

2205643530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 73521451 = 2205643530 / (2 + 2 + 0 + 5 + 6 + 4 + 3 + 5 + 3 + 0).

It is a Curzon 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, 36760696 + ... + 36760755.

It is an arithmetic number, because the mean of its divisors is an integer number (330846534).

Almost surely, 2^2205643530 is an apocalyptic number.

2205643530 is an abundant number, since it is smaller than the sum of its proper divisors (3087901014).

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

2205643530 is a wasteful number, since it uses less digits than its factorization.

2205643530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73521461.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 2205643530 is about 46964.2792982071. The cubic root of 2205643530 is about 1301.7026073893.

The spelling of 2205643530 in words is "two billion, two hundred five million, six hundred forty-three thousand, five hundred thirty".