2243420017 has 2 divisors, whose sum is σ = 2243420018. Its totient is φ = 2243420016.

The previous prime is 2243420009. The next prime is 2243420029. The reversal of 2243420017 is 7100243422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1897125136 + 346294881 = 43556^2 + 18609^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243420017 - 2³ = 2243420009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243419973 and 2243420000.

It is not a weakly prime, because it can be changed into another prime (2243420087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121710008 + 1121710009.

It is an arithmetic number, because the mean of its divisors is an integer number (1121710009).

Almost surely, 2^2243420017 is an apocalyptic number.

It is an amenable number.

2243420017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243420017 is an equidigital number, since it uses as much as digits as its factorization.

2243420017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2243420017 is about 47364.7550083393. The cubic root of 2243420017 is about 1309.0920844176.

Adding to 2243420017 its reverse (7100243422), we get a palindrome (9343663439).

The spelling of 2243420017 in words is "two billion, two hundred forty-three million, four hundred twenty thousand, seventeen".