11223444 has 24 divisors (see below), whose sum is σ = 26435808. Its totient is φ = 3705760.

The previous prime is 11223437. The next prime is 11223461. The reversal of 11223444 is 44432211.

It is a super-2 number, since 2×11223444² = 251931390442272, which contains 22 as substring.

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

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11223444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3087 + ... + 5654.

It is an arithmetic number, because the mean of its divisors is an integer number (1101492).

Almost surely, 2^11223444 is an apocalyptic number.

It is an amenable number.

11223444 is an abundant number, since it is smaller than the sum of its proper divisors (15212364).

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

11223444 is a wasteful number, since it uses less digits than its factorization.

11223444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8855 (or 8853 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 11223444 is about 3350.1408925596. The cubic root of 11223444 is about 223.8937899969.

Adding to 11223444 its reverse (44432211), we get a palindrome (55655655).

The spelling of 11223444 in words is "eleven million, two hundred twenty-three thousand, four hundred forty-four".