1244275168 has 12 divisors (see below), whose sum is σ = 2449666800. Its totient is φ = 622137568.

The previous prime is 1244275159. The next prime is 1244275171. The reversal of 1244275168 is 8615724421.

It is a self number, because there is not a number n which added to its sum of digits gives 1244275168.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19441768 + ... + 19441831.

It is an arithmetic number, because the mean of its divisors is an integer number (204138900).

Almost surely, 2^1244275168 is an apocalyptic number.

It is an amenable number.

1244275168 is a deficient number, since it is larger than the sum of its proper divisors (1205391632).

1244275168 is an equidigital number, since it uses as much as digits as its factorization.

1244275168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38883609 (or 38883601 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 1244275168 is about 35274.2847978524. The cubic root of 1244275168 is about 1075.5703245195.

Adding to 1244275168 its reverse (8615724421), we get a palindrome (9859999589).

The spelling of 1244275168 in words is "one billion, two hundred forty-four million, two hundred seventy-five thousand, one hundred sixty-eight".