11008140 has 96 divisors (see below), whose sum is σ = 36239616. Its totient is φ = 2461440.

The previous prime is 11008117. The next prime is 11008147. The reversal of 11008140 is 4180011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11008147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7939 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (377496).

Almost surely, 2^11008140 is an apocalyptic number.

11008140 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 11008140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18119808).

11008140 is an abundant number, since it is smaller than the sum of its proper divisors (25231476).

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

11008140 is a wasteful number, since it uses less digits than its factorization.

11008140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1317 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 11008140 is about 3317.8517145888. The cubic root of 11008140 is about 222.4528537064.

Adding to 11008140 its reverse (4180011), we get a palindrome (15188151).

The spelling of 11008140 in words is "eleven million, eight thousand, one hundred forty".