1118327840 has 96 divisors (see below), whose sum is σ = 3178465920. Its totient is φ = 363239424.

The previous prime is 1118327803. The next prime is 1118327857. The reversal of 1118327840 is 487238111.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1118327840.

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, 4997 + ... + 47556.

It is an arithmetic number, because the mean of its divisors is an integer number (33109020).

Almost surely, 2^1118327840 is an apocalyptic number.

1118327840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118327840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589232960).

1118327840 is an abundant number, since it is smaller than the sum of its proper divisors (2060138080).

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

1118327840 is a wasteful number, since it uses less digits than its factorization.

1118327840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52594 (or 52586 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 1118327840 is about 33441.4090612223. The cubic root of 1118327840 is about 1037.9817367032.

The spelling of 1118327840 in words is "one billion, one hundred eighteen million, three hundred twenty-seven thousand, eight hundred forty".