1138116 has 48 divisors (see below), whose sum is σ = 3217536. Its totient is φ = 305664.

The previous prime is 1138097. The next prime is 1138117. The reversal of 1138116 is 6118311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1138092 and 1138101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030 + ... + 1826.

It is an arithmetic number, because the mean of its divisors is an integer number (67032).

2^1138116 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 1138116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1608768).

1138116 is an abundant number, since it is smaller than the sum of its proper divisors (2079420).

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

1138116 is a wasteful number, since it uses less digits than its factorization.

1138116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its digits is 144, while the sum is 21.

The square root of 1138116 is about 1066.8251965528. The cubic root of 1138116 is about 104.4068139003.

The spelling of 1138116 in words is "one million, one hundred thirty-eight thousand, one hundred sixteen".