11222784 has 54 divisors (see below), whose sum is σ = 32364696. Its totient is φ = 3740160.

The previous prime is 11222759. The next prime is 11222789. The reversal of 11222784 is 48722211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132 + ... + 4739.

Almost surely, 2^11222784 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 11222784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16182348).

11222784 is an abundant number, since it is smaller than the sum of its proper divisors (21141912).

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

11222784 is an equidigital number, since it uses as much as digits as its factorization.

11222784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893 (or 4876 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 11222784 is about 3350.0423877915. The cubic root of 11222784 is about 223.8894011837.

Adding to 11222784 its reverse (48722211), we get a palindrome (59944995).

The spelling of 11222784 in words is "eleven million, two hundred twenty-two thousand, seven hundred eighty-four".