2305340221 has 4 divisors (see below), whose sum is σ = 2339748352. Its totient is φ = 2270932092.

The previous prime is 2305340179. The next prime is 2305340249. The reversal of 2305340221 is 1220435032.

2305340221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2305340221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2305340192 and 2305340201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305340291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17203965 + ... + 17204098.

It is an arithmetic number, because the mean of its divisors is an integer number (584937088).

Almost surely, 2^2305340221 is an apocalyptic number.

It is an amenable number.

2305340221 is a deficient number, since it is larger than the sum of its proper divisors (34408131).

2305340221 is an equidigital number, since it uses as much as digits as its factorization.

2305340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34408130.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2305340221 is about 48013.9586058055. The cubic root of 2305340221 is about 1321.0269443761.

Adding to 2305340221 its reverse (1220435032), we get a palindrome (3525775253).

The spelling of 2305340221 in words is "two billion, three hundred five million, three hundred forty thousand, two hundred twenty-one".