11140380 has 72 divisors (see below), whose sum is σ = 34398000. Its totient is φ = 2917632.

The previous prime is 11140361. The next prime is 11140387. The reversal of 11140380 is 8304111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10096 + ... + 11144.

It is an arithmetic number, because the mean of its divisors is an integer number (477750).

Almost surely, 2^11140380 is an apocalyptic number.

11140380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11140380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17199000).

11140380 is an abundant number, since it is smaller than the sum of its proper divisors (23257620).

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

11140380 is a wasteful number, since it uses less digits than its factorization.

11140380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11140380 is about 3337.7207792145. The cubic root of 11140380 is about 223.3400804872.

Adding to 11140380 its reverse (8304111), we get a palindrome (19444491).

The spelling of 11140380 in words is "eleven million, one hundred forty thousand, three hundred eighty".