1135869984 has 36 divisors (see below), whose sum is σ = 3230131086. Its totient is φ = 378623232.

The previous prime is 1135869967. The next prime is 1135869991. The reversal of 1135869984 is 4899685311.

It can be written as a sum of positive squares in only one way, i.e., 950365584 + 185504400 = 30828^2 + 13620^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1135869984.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1971709 + ... + 1972284.

Almost surely, 2^1135869984 is an apocalyptic number.

It is an amenable number.

1135869984 is an abundant number, since it is smaller than the sum of its proper divisors (2094261102).

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

1135869984 is a wasteful number, since it uses less digits than its factorization.

1135869984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944009 (or 3943998 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 1135869984 is about 33702.6702799645. The cubic root of 1135869984 is about 1043.3808809923.

The spelling of 1135869984 in words is "one billion, one hundred thirty-five million, eight hundred sixty-nine thousand, nine hundred eighty-four".