2443220243 has 2 divisors, whose sum is σ = 2443220244. Its totient is φ = 2443220242.

The previous prime is 2443220233. The next prime is 2443220249. The reversal of 2443220243 is 3420223442.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2443220243 - 2³⁰ = 1369478419 is a prime.

It is not a weakly prime, because it can be changed into another prime (2443220249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221610121 + 1221610122.

It is an arithmetic number, because the mean of its divisors is an integer number (1221610122).

Almost surely, 2^2443220243 is an apocalyptic number.

2443220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2443220243 is an equidigital number, since it uses as much as digits as its factorization.

2443220243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 2443220243 is about 49428.9413501847. The cubic root of 2443220243 is about 1346.8550924202.

Adding to 2443220243 its reverse (3420223442), we get a palindrome (5863443685).

The spelling of 2443220243 in words is "two billion, four hundred forty-three million, two hundred twenty thousand, two hundred forty-three".