11011868 has 36 divisors (see below), whose sum is σ = 23604840. Its totient is φ = 4469472.

The previous prime is 11011867. The next prime is 11011873. The reversal of 11011868 is 86811011.

It is a super-2 number, since 2×11011868² = 242522473698848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2246 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (655690).

Almost surely, 2^11011868 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 11011868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11802420).

11011868 is an abundant number, since it is smaller than the sum of its proper divisors (12592972).

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

11011868 is a wasteful number, since it uses less digits than its factorization.

11011868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994 (or 2985 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 26.

The square root of 11011868 is about 3318.4134763468. The cubic root of 11011868 is about 222.4779627208.

Adding to 11011868 its reverse (86811011), we get a palindrome (97822879).

The spelling of 11011868 in words is "eleven million, eleven thousand, eight hundred sixty-eight".