1147244944 has 20 divisors (see below), whose sum is σ = 2277002700. Its totient is φ = 559631360.

The previous prime is 1147244941. The next prime is 1147244963. The reversal of 1147244944 is 4494427411.

It can be written as a sum of positive squares in 2 ways, for example, as 467078544 + 680166400 = 21612^2 + 26080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1147244897 and 1147244906.

It is not an unprimeable number, because it can be changed into a prime (1147244941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873769 + ... + 875080.

It is an arithmetic number, because the mean of its divisors is an integer number (113850135).

Almost surely, 2^1147244944 is an apocalyptic number.

It is an amenable number.

1147244944 is a deficient number, since it is larger than the sum of its proper divisors (1129757756).

1147244944 is a wasteful number, since it uses less digits than its factorization.

1147244944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748898 (or 1748892 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 1147244944 is about 33871.0044728526. The cubic root of 1147244944 is about 1046.8522339019.

The spelling of 1147244944 in words is "one billion, one hundred forty-seven million, two hundred forty-four thousand, nine hundred forty-four".