11223428 has 12 divisors (see below), whose sum is σ = 19694220. Its totient is φ = 5596512.

The previous prime is 11223427. The next prime is 11223437. The reversal of 11223428 is 82432211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6061444 + 5161984 = 2462^2 + 2272^2 .

It is not an unprimeable number, because it can be changed into a prime (11223427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (1641185).

Almost surely, 2^11223428 is an apocalyptic number.

It is an amenable number.

11223428 is a deficient number, since it is larger than the sum of its proper divisors (8470792).

11223428 is a wasteful number, since it uses less digits than its factorization.

11223428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606 (or 7604 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 11223428 is about 3350.1385045995. The cubic root of 11223428 is about 223.8936836035.

Adding to 11223428 its reverse (82432211), we get a palindrome (93655639).

The spelling of 11223428 in words is "eleven million, two hundred twenty-three thousand, four hundred twenty-eight".