1118981336 has 32 divisors (see below), whose sum is σ = 2314558800. Its totient is φ = 502909440.

The previous prime is 1118981333. The next prime is 1118981387. The reversal of 1118981336 is 6331898111.

It is a junction number, because it is equal to n+sod(n) for n = 1118981293 and 1118981302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118981333) by changing a digit.

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, 63605 + ... + 79268.

Almost surely, 2^1118981336 is an apocalyptic number.

It is an amenable number.

1118981336 is an abundant number, since it is smaller than the sum of its proper divisors (1195577464).

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

1118981336 is a wasteful number, since it uses less digits than its factorization.

1118981336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142979 (or 142975 counting only the distinct ones).

The product of its digits is 31104, while the sum is 41.

The square root of 1118981336 is about 33451.1783947890. The cubic root of 1118981336 is about 1038.1838792254.

The spelling of 1118981336 in words is "one billion, one hundred eighteen million, nine hundred eighty-one thousand, three hundred thirty-six".