1144247916 has 24 divisors (see below), whose sum is σ = 3051328000. Its totient is φ = 326927952.

The previous prime is 1144247891. The next prime is 1144247921. The reversal of 1144247916 is 6197424411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6810916 + ... + 6811083.

Almost surely, 2^1144247916 is an apocalyptic number.

It is an amenable number.

1144247916 is an abundant number, since it is smaller than the sum of its proper divisors (1907080084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144247916 is a wasteful number, since it uses less digits than its factorization.

1144247916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13622013 (or 13622011 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 1144247916 is about 33826.7337471415. The cubic root of 1144247916 is about 1045.9398505725.

The spelling of 1144247916 in words is "one billion, one hundred forty-four million, two hundred forty-seven thousand, nine hundred sixteen".