2444000243 has 4 divisors (see below), whose sum is σ = 2444421840. Its totient is φ = 2443578648.

The previous prime is 2444000239. The next prime is 2444000261. The reversal of 2444000243 is 3420004442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3420004442 = 2 ⋅1710002221.

It is a cyclic number.

It is not a de Polignac number, because 2444000243 - 2² = 2444000239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2444000233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201980 + ... + 213737.

It is an arithmetic number, because the mean of its divisors is an integer number (611105460).

Almost surely, 2^2444000243 is an apocalyptic number.

2444000243 is a deficient number, since it is larger than the sum of its proper divisors (421597).

2444000243 is an equidigital number, since it uses as much as digits as its factorization.

2444000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421596.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2444000243 is about 49436.8308349150. The cubic root of 2444000243 is about 1346.9984053558.

Adding to 2444000243 its reverse (3420004442), we get a palindrome (5864004685).

The spelling of 2444000243 in words is "two billion, four hundred forty-four million, two hundred forty-three", and thus it is an aban number.