1344240243 has 24 divisors (see below), whose sum is σ = 1990010880. Its totient is φ = 873920880.

The previous prime is 1344240241. The next prime is 1344240257. The reversal of 1344240243 is 3420424431.

It is a happy number.

It is not a de Polignac number, because 1344240243 - 2¹ = 1344240241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1344240241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275838 + ... + 280668.

It is an arithmetic number, because the mean of its divisors is an integer number (82917120).

Almost surely, 2^1344240243 is an apocalyptic number.

1344240243 is a deficient number, since it is larger than the sum of its proper divisors (645770637).

1344240243 is a wasteful number, since it uses less digits than its factorization.

1344240243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5599 (or 5596 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1344240243 is about 36663.8819957734. The cubic root of 1344240243 is about 1103.6354218155.

Adding to 1344240243 its reverse (3420424431), we get a palindrome (4764664674).

The spelling of 1344240243 in words is "one billion, three hundred forty-four million, two hundred forty thousand, two hundred forty-three".