1189445804 has 24 divisors (see below), whose sum is σ = 2112989760. Its totient is φ = 585771264.

The previous prime is 1189445767. The next prime is 1189445819. The reversal of 1189445804 is 4085449811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132482 + ... + 141174.

It is an arithmetic number, because the mean of its divisors is an integer number (88041240).

Almost surely, 2^1189445804 is an apocalyptic number.

It is an amenable number.

1189445804 is a deficient number, since it is larger than the sum of its proper divisors (923543956).

1189445804 is a wasteful number, since it uses less digits than its factorization.

With its successor (1189445805) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (9207).

With its successor (1189445805) it forms an eRAP, since the sums of their prime factors are consecutive (9209 and 9210).

1189445804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209 (or 9207 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 1189445804 is about 34488.3430161555. The cubic root of 1189445804 is about 1059.5339721914.

The spelling of 1189445804 in words is "one billion, one hundred eighty-nine million, four hundred forty-five thousand, eight hundred four".