2443340243 has 2 divisors, whose sum is σ = 2443340244. Its totient is φ = 2443340242.

The previous prime is 2443340189. The next prime is 2443340267. The reversal of 2443340243 is 3420433442.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2443340243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2443340143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221670121 + 1221670122.

It is an arithmetic number, because the mean of its divisors is an integer number (1221670122).

Almost surely, 2^2443340243 is an apocalyptic number.

2443340243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2443340243 is an equidigital number, since it uses as much as digits as its factorization.

2443340243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 29.

The square root of 2443340243 is about 49430.1551990281. The cubic root of 2443340243 is about 1346.8771425493.

Adding to 2443340243 its reverse (3420433442), we get a palindrome (5863773685).

The spelling of 2443340243 in words is "two billion, four hundred forty-three million, three hundred forty thousand, two hundred forty-three".