11223280 has 40 divisors (see below), whose sum is σ = 26596512. Its totient is φ = 4402944.

The previous prime is 11223263. The next prime is 11223283. The reversal of 11223280 is 8232211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2917 + ... + 5563.

Almost surely, 2^11223280 is an apocalyptic number.

11223280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13298256).

11223280 is an abundant number, since it is smaller than the sum of its proper divisors (15373232).

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

11223280 is a wasteful number, since it uses less digits than its factorization.

11223280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 11223280 is about 3350.1164158877. The cubic root of 11223280 is about 223.8926994594.

Adding to 11223280 its reverse (8232211), we get a palindrome (19455491).

The spelling of 11223280 in words is "eleven million, two hundred twenty-three thousand, two hundred eighty".