11143224 has 64 divisors (see below), whose sum is σ = 32313600. Its totient is φ = 3551328.

The previous prime is 11143219. The next prime is 11143243. The reversal of 11143224 is 42234111.

It is a super-2 number, since 2×11143224² = 248342882228352, which contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11143197 and 11143206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3847 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (504900).

Almost surely, 2^11143224 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 11143224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16156800).

11143224 is an abundant number, since it is smaller than the sum of its proper divisors (21170376).

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

11143224 is a wasteful number, since it uses less digits than its factorization.

11143224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2271 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 11143224 is about 3338.1467912601. The cubic root of 11143224 is about 223.3590841821.

Adding to 11143224 its reverse (42234111), we get a palindrome (53377335).

The spelling of 11143224 in words is "eleven million, one hundred forty-three thousand, two hundred twenty-four".