2263218949 has 2 divisors, whose sum is σ = 2263218950. Its totient is φ = 2263218948.

The previous prime is 2263218917. The next prime is 2263218973. The reversal of 2263218949 is 9498123622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2105892100 + 157326849 = 45890^2 + 12543^2 .

It is a cyclic number.

It is not a de Polignac number, because 2263218949 - 2⁵ = 2263218917 is a prime.

It is a super-2 number, since 2×2263218949² = 10244320022225329202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2263218899 and 2263218908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2263518949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1131609474 + 1131609475.

It is an arithmetic number, because the mean of its divisors is an integer number (1131609475).

Almost surely, 2^2263218949 is an apocalyptic number.

It is an amenable number.

2263218949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2263218949 is an equidigital number, since it uses as much as digits as its factorization.

2263218949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 2263218949 is about 47573.3007999235. The cubic root of 2263218949 is about 1312.9318691763.

The spelling of 2263218949 in words is "two billion, two hundred sixty-three million, two hundred eighteen thousand, nine hundred forty-nine".