1189768 has 8 divisors (see below), whose sum is σ = 2230830. Its totient is φ = 594880.

The previous prime is 1189763. The next prime is 1189789. The reversal of 1189768 is 8679811.

It can be written as a sum of positive squares in only one way, i.e., 1170724 + 19044 = 1082^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1189768.

It is not an unprimeable number, because it can be changed into a prime (1189763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74353 + ... + 74368.

2^1189768 is an apocalyptic number.

It is an amenable number.

1189768 is a deficient number, since it is larger than the sum of its proper divisors (1041062).

1189768 is a wasteful number, since it uses less digits than its factorization.

1189768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148727 (or 148723 counting only the distinct ones).

The product of its digits is 24192, while the sum is 40.

The square root of 1189768 is about 1090.7648692546. The cubic root of 1189768 is about 105.9629632088.

The spelling of 1189768 in words is "one million, one hundred eighty-nine thousand, seven hundred sixty-eight".