1118718 has 16 divisors (see below), whose sum is σ = 2486160. Its totient is φ = 372888.

The previous prime is 1118717. The next prime is 1118723. The reversal of 1118718 is 8178111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1118691 and 1118700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10305 + ... + 10412.

It is an arithmetic number, because the mean of its divisors is an integer number (155385).

2^1118718 is an apocalyptic number.

1118718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1118718 is an abundant number, since it is smaller than the sum of its proper divisors (1367442).

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

1118718 is a wasteful number, since it uses less digits than its factorization.

1118718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20728 (or 20722 counting only the distinct ones).

The product of its digits is 448, while the sum is 27.

The square root of 1118718 is about 1057.6946629344. The cubic root of 1118718 is about 103.8102432339.

The spelling of 1118718 in words is "one million, one hundred eighteen thousand, seven hundred eighteen".