1118427268 has 48 divisors (see below), whose sum is σ = 2307432960. Its totient is φ = 464317056.

The previous prime is 1118427259. The next prime is 1118427281. The reversal of 1118427268 is 8627248111.

It is a self number, because there is not a number n which added to its sum of digits gives 1118427268.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245346 + ... + 249862.

It is an arithmetic number, because the mean of its divisors is an integer number (48071520).

Almost surely, 2^1118427268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118427268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153716480).

1118427268 is an abundant number, since it is smaller than the sum of its proper divisors (1189005692).

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

1118427268 is a wasteful number, since it uses less digits than its factorization.

1118427268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4804 (or 4802 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 1118427268 is about 33442.8956282198. The cubic root of 1118427268 is about 1038.0124973281.

The spelling of 1118427268 in words is "one billion, one hundred eighteen million, four hundred twenty-seven thousand, two hundred sixty-eight".