2243723969 has 2 divisors, whose sum is σ = 2243723970. Its totient is φ = 2243723968.

The previous prime is 2243723959. The next prime is 2243724071. The reversal of 2243723969 is 9693273422.

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., 1458323344 + 785400625 = 38188^2 + 28025^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243723969 - 2⁴ = 2243723953 is a prime.

It is a super-2 number, since 2×2243723969² = 10068594498130225922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2243723959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121861984 + 1121861985.

It is an arithmetic number, because the mean of its divisors is an integer number (1121861985).

Almost surely, 2^2243723969 is an apocalyptic number.

It is an amenable number.

2243723969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243723969 is an equidigital number, since it uses as much as digits as its factorization.

2243723969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 47.

The square root of 2243723969 is about 47367.9635302173. The cubic root of 2243723969 is about 1309.1512029637.

The spelling of 2243723969 in words is "two billion, two hundred forty-three million, seven hundred twenty-three thousand, nine hundred sixty-nine".