1132381836 has 48 divisors (see below), whose sum is σ = 3090326400. Its totient is φ = 357593616.

The previous prime is 1132381819. The next prime is 1132381837. The reversal of 1132381836 is 6381832311.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1132381836.

It is not an unprimeable number, because it can be changed into a prime (1132381837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273870 + ... + 277973.

It is an arithmetic number, because the mean of its divisors is an integer number (64381800).

Almost surely, 2^1132381836 is an apocalyptic number.

It is an amenable number.

1132381836 is an abundant number, since it is smaller than the sum of its proper divisors (1957944564).

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

1132381836 is a wasteful number, since it uses less digits than its factorization.

1132381836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551875 (or 551867 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1132381836 is about 33650.8816526402. The cubic root of 1132381836 is about 1042.3117449003.

The spelling of 1132381836 in words is "one billion, one hundred thirty-two million, three hundred eighty-one thousand, eight hundred thirty-six".