2243463721 has 2 divisors, whose sum is σ = 2243463722. Its totient is φ = 2243463720.

The previous prime is 2243463709. The next prime is 2243463773. The reversal of 2243463721 is 1273643422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1444836121 + 798627600 = 38011^2 + 28260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243463721 - 2¹¹ = 2243461673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243460721) 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, 1121731860 + 1121731861.

It is an arithmetic number, because the mean of its divisors is an integer number (1121731861).

Almost surely, 2^2243463721 is an apocalyptic number.

It is an amenable number.

2243463721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243463721 is an equidigital number, since it uses as much as digits as its factorization.

2243463721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 34.

The square root of 2243463721 is about 47365.2163617987. The cubic root of 2243463721 is about 1309.1005851574.

The spelling of 2243463721 in words is "two billion, two hundred forty-three million, four hundred sixty-three thousand, seven hundred twenty-one".