1128360978 has 24 divisors (see below), whose sum is σ = 2448066816. Its totient is φ = 375615000.

The previous prime is 1128360977. The next prime is 1128360997. The reversal of 1128360978 is 8790638211.

1128360978 is a `hidden beast` number, since 11 + 28 + 3 + 609 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1128360977) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 28218 + ... + 55253.

It is an arithmetic number, because the mean of its divisors is an integer number (102002784).

Almost surely, 2^1128360978 is an apocalyptic number.

1128360978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1128360978 is an abundant number, since it is smaller than the sum of its proper divisors (1319705838).

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

1128360978 is a wasteful number, since it uses less digits than its factorization.

1128360978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84230 (or 84227 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1128360978 is about 33591.0847993928. The cubic root of 1128360978 is about 1041.0766027007.

The spelling of 1128360978 in words is "one billion, one hundred twenty-eight million, three hundred sixty thousand, nine hundred seventy-eight".