11220784 has 10 divisors (see below), whose sum is σ = 21740300. Its totient is φ = 5610384.

The previous prime is 11220779. The next prime is 11220809. The reversal of 11220784 is 48702211.

It is a happy number.

11220784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350634 + ... + 350665.

It is an arithmetic number, because the mean of its divisors is an integer number (2174030).

Almost surely, 2^11220784 is an apocalyptic number.

It is an amenable number.

11220784 is a deficient number, since it is larger than the sum of its proper divisors (10519516).

11220784 is an equidigital number, since it uses as much as digits as its factorization.

11220784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701307 (or 701301 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 11220784 is about 3349.7438708056. The cubic root of 11220784 is about 223.8761006989.

Adding to 11220784 its reverse (48702211), we get a palindrome (59922995).

The spelling of 11220784 in words is "eleven million, two hundred twenty thousand, seven hundred eighty-four".