1118917836 has 36 divisors (see below), whose sum is σ = 2829681400. Its totient is φ = 372800448.

The previous prime is 1118917801. The next prime is 1118917841. The reversal of 1118917836 is 6387198111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1118917791 and 1118917800.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 89880 + ... + 101568.

Almost surely, 2^1118917836 is an apocalyptic number.

It is an amenable number.

1118917836 is an abundant number, since it is smaller than the sum of its proper divisors (1710763564).

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

1118917836 is a wasteful number, since it uses less digits than its factorization.

1118917836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14358 (or 14353 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The square root of 1118917836 is about 33450.2292368827. The cubic root of 1118917836 is about 1038.1642405531.

The spelling of 1118917836 in words is "one billion, one hundred eighteen million, nine hundred seventeen thousand, eight hundred thirty-six".