1118216 has 32 divisors (see below), whose sum is σ = 2328480. Its totient is φ = 499200.

The previous prime is 1118203. The next prime is 1118219. The reversal of 1118216 is 6128111.

It is not an unprimeable number, because it can be changed into a prime (1118219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8471 + ... + 8601.

It is an arithmetic number, because the mean of its divisors is an integer number (72765).

2^1118216 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 1118216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164240).

1118216 is an abundant number, since it is smaller than the sum of its proper divisors (1210264).

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

1118216 is a wasteful number, since it uses less digits than its factorization.

1118216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 241 counting only the distinct ones).

The product of its digits is 96, while the sum is 20.

The square root of 1118216 is about 1057.4573277442. The cubic root of 1118216 is about 103.7947133926.

The spelling of 1118216 in words is "one million, one hundred eighteen thousand, two hundred sixteen".