881118 has 72 divisors (see below), whose sum is σ = 2365272. Its totient is φ = 244944.

The previous prime is 881099. The next prime is 881119. The reversal of 881118 is 811188.

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 = 881091 and 881100.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881118.

It is not an unprimeable number, because it can be changed into a prime (881119) by changing a digit.

881118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 35 ways as a sum of consecutive naturals, for example, 23796 + ... + 23832.

It is an arithmetic number, because the mean of its divisors is an integer number (32851).

2⁸⁸¹¹¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182636).

881118 is an abundant number, since it is smaller than the sum of its proper divisors (1484154).

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

881118 is a wasteful number, since it uses less digits than its factorization.

881118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 49 counting only the distinct ones).

The product of its digits is 512, while the sum is 27.

The square root of 881118 is about 938.6788588223. The cubic root of 881118 is about 95.8689618418.

It can be divided in two parts, 881 and 118, that added together give a palindrome (999).

The spelling of 881118 in words is "eight hundred eighty-one thousand, one hundred eighteen".