11220436 has 12 divisors (see below), whose sum is σ = 19746720. Its totient is φ = 5578520.

The previous prime is 11220427. The next prime is 11220457. The reversal of 11220436 is 63402211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7120 + ... + 8551.

It is an arithmetic number, because the mean of its divisors is an integer number (1645560).

Almost surely, 2^11220436 is an apocalyptic number.

It is an amenable number.

11220436 is a deficient number, since it is larger than the sum of its proper divisors (8526284).

11220436 is a wasteful number, since it uses less digits than its factorization.

11220436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15854 (or 15852 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 11220436 is about 3349.6919261329. The cubic root of 11220436 is about 223.8737862531.

Adding to 11220436 its reverse (63402211), we get a palindrome (74622647).

The spelling of 11220436 in words is "eleven million, two hundred twenty thousand, four hundred thirty-six".