1118657808 has 60 divisors (see below), whose sum is σ = 3266814720. Its totient is φ = 356672448.

The previous prime is 1118657807. The next prime is 1118657809. The reversal of 1118657808 is 8087568111.

It is an interprime number because it is at equal distance from previous prime (1118657807) and next prime (1118657809).

It is not an unprimeable number, because it can be changed into a prime (1118657801) 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 11 ways as a sum of consecutive naturals, for example, 165568 + ... + 172191.

It is an arithmetic number, because the mean of its divisors is an integer number (54446912).

Almost surely, 2^1118657808 is an apocalyptic number.

1118657808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1118657808 is an abundant number, since it is smaller than the sum of its proper divisors (2148156912).

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

1118657808 is a wasteful number, since it uses less digits than its factorization.

1118657808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337796 (or 337787 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The square root of 1118657808 is about 33446.3422215345. The cubic root of 1118657808 is about 1038.0838138299.

The spelling of 1118657808 in words is "one billion, one hundred eighteen million, six hundred fifty-seven thousand, eight hundred eight".