1118639344 has 10 divisors (see below), whose sum is σ = 2167363760. Its totient is φ = 559319664.

The previous prime is 1118639341. The next prime is 1118639377. The reversal of 1118639344 is 4439368111.

It is a junction number, because it is equal to n+sod(n) for n = 1118639297 and 1118639306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118639341) 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 as a sum of consecutive naturals, namely, 34957464 + ... + 34957495.

It is an arithmetic number, because the mean of its divisors is an integer number (216736376).

Almost surely, 2^1118639344 is an apocalyptic number.

It is an amenable number.

1118639344 is a deficient number, since it is larger than the sum of its proper divisors (1048724416).

1118639344 is an equidigital number, since it uses as much as digits as its factorization.

1118639344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69914967 (or 69914961 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 1118639344 is about 33446.0661961911. The cubic root of 1118639344 is about 1038.0781024363.

The spelling of 1118639344 in words is "one billion, one hundred eighteen million, six hundred thirty-nine thousand, three hundred forty-four".