11140188 has 48 divisors (see below), whose sum is σ = 27396096. Its totient is φ = 3516480.

The previous prime is 11140187. The next prime is 11140189. The reversal of 11140188 is 88104111.

It is an interprime number because it is at equal distance from previous prime (11140187) and next prime (11140189).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140183) 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, 49845 + ... + 50067.

It is an arithmetic number, because the mean of its divisors is an integer number (570752).

Almost surely, 2^11140188 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 11140188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13698048).

11140188 is an abundant number, since it is smaller than the sum of its proper divisors (16255908).

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

11140188 is a wasteful number, since it uses less digits than its factorization.

11140188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 11140188 is about 3337.6920169482. The cubic root of 11140188 is about 223.3387974208.

Adding to 11140188 its reverse (88104111), we get a palindrome (99244299).

The spelling of 11140188 in words is "eleven million, one hundred forty thousand, one hundred eighty-eight".