2244479891 has 2 divisors, whose sum is σ = 2244479892. Its totient is φ = 2244479890.

The previous prime is 2244479849. The next prime is 2244479921. The reversal of 2244479891 is 1989744422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2244479891 - 2¹⁸ = 2244217747 is a prime.

It is a super-2 number, since 2×2244479891² = 10075379962206743762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2244479491) 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, 1122239945 + 1122239946.

It is an arithmetic number, because the mean of its divisors is an integer number (1122239946).

Almost surely, 2^2244479891 is an apocalyptic number.

2244479891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2244479891 is an equidigital number, since it uses as much as digits as its factorization.

2244479891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The square root of 2244479891 is about 47375.9421120045. The cubic root of 2244479891 is about 1309.2982063525.

The spelling of 2244479891 in words is "two billion, two hundred forty-four million, four hundred seventy-nine thousand, eight hundred ninety-one".