1178128844 has 12 divisors (see below), whose sum is σ = 2090764368. Its totient is φ = 580767600.

The previous prime is 1178128843. The next prime is 1178128859. The reversal of 1178128844 is 4488218711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1178128795 and 1178128804.

It is not an unprimeable number, because it can be changed into a prime (1178128841) 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, 2073887 + ... + 2074454.

It is an arithmetic number, because the mean of its divisors is an integer number (174230364).

Almost surely, 2^1178128844 is an apocalyptic number.

It is an amenable number.

1178128844 is a deficient number, since it is larger than the sum of its proper divisors (912635524).

1178128844 is a wasteful number, since it uses less digits than its factorization.

1178128844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4148416 (or 4148414 counting only the distinct ones).

The product of its digits is 114688, while the sum is 44.

The square root of 1178128844 is about 34323.8815404086. The cubic root of 1178128844 is about 1056.1629528816.

The spelling of 1178128844 in words is "one billion, one hundred seventy-eight million, one hundred twenty-eight thousand, eight hundred forty-four".