11223040 has 60 divisors (see below), whose sum is σ = 27131076. Its totient is φ = 4456448.

The previous prime is 11223031. The next prime is 11223067. The reversal of 11223040 is 4032211.

It can be written as a sum of positive squares in 2 ways, for example, as 5308416 + 5914624 = 2304^2 + 2432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11223040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81852 + ... + 81988.

Almost surely, 2^11223040 is an apocalyptic number.

11223040 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 11223040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13565538).

11223040 is an abundant number, since it is smaller than the sum of its proper divisors (15908036).

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

11223040 is an frugal number, since it uses more digits than its factorization.

11223040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 11223040 is about 3350.0805960454. The cubic root of 11223040 is about 223.8911035317.

Adding to 11223040 its reverse (4032211), we get a palindrome (15255251).

The spelling of 11223040 in words is "eleven million, two hundred twenty-three thousand, forty".