1135840818 has 64 divisors (see below), whose sum is σ = 2642595840. Its totient is φ = 318763200.

The previous prime is 1135840817. The next prime is 1135840831. The reversal of 1135840818 is 8180485311.

It is not an unprimeable number, because it can be changed into a prime (1135840817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1070008 + ... + 1071068.

It is an arithmetic number, because the mean of its divisors is an integer number (41290560).

Almost surely, 2^1135840818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1135840818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321297920).

1135840818 is an abundant number, since it is smaller than the sum of its proper divisors (1506755022).

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

1135840818 is a wasteful number, since it uses less digits than its factorization.

1135840818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 1135840818 is about 33702.2375815019. The cubic root of 1135840818 is about 1043.3719505373.

The spelling of 1135840818 in words is "one billion, one hundred thirty-five million, eight hundred forty thousand, eight hundred eighteen".