2201430645 has 12 divisors (see below), whose sum is σ = 3815813196. Its totient is φ = 1174096320.

The previous prime is 2201430641. The next prime is 2201430653. The reversal of 2201430645 is 5460341022.

2201430645 is a `hidden beast` number, since 2 + 2 + 0 + 14 + 3 + 0 + 645 = 666.

2201430645 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 984327876 + 1217102769 = 31374^2 + 34887^2 .

It is not a de Polignac number, because 2201430645 - 2² = 2201430641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201430641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24460296 + ... + 24460385.

It is an arithmetic number, because the mean of its divisors is an integer number (317984433).

Almost surely, 2^2201430645 is an apocalyptic number.

It is an amenable number.

2201430645 is a deficient number, since it is larger than the sum of its proper divisors (1614382551).

2201430645 is a wasteful number, since it uses less digits than its factorization.

2201430645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48920692 (or 48920689 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2201430645 is about 46919.4058466217. The cubic root of 2201430645 is about 1300.8733076796.

Adding to 2201430645 its reverse (5460341022), we get a palindrome (7661771667).

The spelling of 2201430645 in words is "two billion, two hundred one million, four hundred thirty thousand, six hundred forty-five".