2259747949 has 2 divisors, whose sum is σ = 2259747950. Its totient is φ = 2259747948.

The previous prime is 2259747877. The next prime is 2259747979. The reversal of 2259747949 is 9497479522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1503112900 + 756635049 = 38770^2 + 27507^2 .

It is a cyclic number.

It is not a de Polignac number, because 2259747949 - 2¹⁹ = 2259223661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2259747893 and 2259747902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2259747979) 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, 1129873974 + 1129873975.

It is an arithmetic number, because the mean of its divisors is an integer number (1129873975).

Almost surely, 2^2259747949 is an apocalyptic number.

It is an amenable number.

2259747949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259747949 is an equidigital number, since it uses as much as digits as its factorization.

2259747949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11430720, while the sum is 58.

The square root of 2259747949 is about 47536.8062557846. The cubic root of 2259747949 is about 1312.2603303450.

The spelling of 2259747949 in words is "two billion, two hundred fifty-nine million, seven hundred forty-seven thousand, nine hundred forty-nine".