1244402343 has 6 divisors (see below), whose sum is σ = 1797470064. Its totient is φ = 829601556.

The previous prime is 1244402333. The next prime is 1244402347. The reversal of 1244402343 is 3432044421.

It is a happy number.

It is not a de Polignac number, because 1244402343 - 2²⁰ = 1243353767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244402347) 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 in 5 ways as a sum of consecutive naturals, for example, 69133455 + ... + 69133472.

It is an arithmetic number, because the mean of its divisors is an integer number (299578344).

Almost surely, 2^1244402343 is an apocalyptic number.

1244402343 is a deficient number, since it is larger than the sum of its proper divisors (553067721).

1244402343 is a wasteful number, since it uses less digits than its factorization.

1244402343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138266933 (or 138266930 counting only the distinct ones).

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

The square root of 1244402343 is about 35276.0874105959. The cubic root of 1244402343 is about 1075.6069672707.

Adding to 1244402343 its reverse (3432044421), we get a palindrome (4676446764).

The spelling of 1244402343 in words is "one billion, two hundred forty-four million, four hundred two thousand, three hundred forty-three".