1244752868 has 12 divisors (see below), whose sum is σ = 2182096812. Its totient is φ = 621296640.

The previous prime is 1244752849. The next prime is 1244752879. The reversal of 1244752868 is 8682574421.

It can be written as a sum of positive squares in 2 ways, for example, as 966463744 + 278289124 = 31088^2 + 16682^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267353 + ... + 271968.

It is an arithmetic number, because the mean of its divisors is an integer number (181841401).

Almost surely, 2^1244752868 is an apocalyptic number.

It is an amenable number.

1244752868 is a deficient number, since it is larger than the sum of its proper divisors (937343944).

1244752868 is a wasteful number, since it uses less digits than its factorization.

1244752868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539902 (or 539900 counting only the distinct ones).

The product of its digits is 860160, while the sum is 47.

The square root of 1244752868 is about 35281.0553697023. The cubic root of 1244752868 is about 1075.7079506167.

The spelling of 1244752868 in words is "one billion, two hundred forty-four million, seven hundred fifty-two thousand, eight hundred sixty-eight".