1138716 has 36 divisors (see below), whose sum is σ = 2944032. Its totient is φ = 370944.

The previous prime is 1138703. The next prime is 1138717. The reversal of 1138716 is 6178311.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1138716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1356 + ... + 2028.

2^1138716 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 1138716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472016).

1138716 is an abundant number, since it is smaller than the sum of its proper divisors (1805316).

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

1138716 is a wasteful number, since it uses less digits than its factorization.

1138716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 1138716 is about 1067.1063677066. The cubic root of 1138716 is about 104.4251579834.

The spelling of 1138716 in words is "one million, one hundred thirty-eight thousand, seven hundred sixteen".