11140218 has 24 divisors (see below), whose sum is σ = 24355188. Its totient is φ = 3679872.

The previous prime is 11140193. The next prime is 11140231. The reversal of 11140218 is 81204111.

It can be written as a sum of positive squares in 2 ways, for example, as 11108889 + 31329 = 3333^2 + 177^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11140218.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705 + ... + 4772.

Almost surely, 2^11140218 is an apocalyptic number.

11140218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11140218 is an abundant number, since it is smaller than the sum of its proper divisors (13214970).

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

11140218 is a wasteful number, since it uses less digits than its factorization.

11140218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5598 (or 5595 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11140218 is about 3337.6965110687. The cubic root of 11140218 is about 223.3389979009.

Adding to 11140218 its reverse (81204111), we get a palindrome (92344329).

The spelling of 11140218 in words is "eleven million, one hundred forty thousand, two hundred eighteen".