11140686 has 32 divisors (see below), whose sum is σ = 25009920. Its totient is φ = 3675672.

The previous prime is 11140651. The next prime is 11140697. The reversal of 11140686 is 68604111.

It is a super-2 number, since 2×11140686² = 248229769101192, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4561 + ... + 6563.

It is an arithmetic number, because the mean of its divisors is an integer number (781560).

Almost surely, 2^11140686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11140686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12504960).

11140686 is an abundant number, since it is smaller than the sum of its proper divisors (13869234).

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

11140686 is a wasteful number, since it uses less digits than its factorization.

11140686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117 (or 2111 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 11140686 is about 3337.7666185640. The cubic root of 11140686 is about 223.3421253438.

Adding to 11140686 its reverse (68604111), we get a palindrome (79744797).

The spelling of 11140686 in words is "eleven million, one hundred forty thousand, six hundred eighty-six".