11263220 has 24 divisors (see below), whose sum is σ = 23764104. Its totient is φ = 4484096.

The previous prime is 11263193. The next prime is 11263229. The reversal of 11263220 is 2236211.

It can be written as a sum of positive squares in 4 ways, for example, as 2347024 + 8916196 = 1532^2 + 2986^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11263229) 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, 3452 + ... + 5868.

It is an arithmetic number, because the mean of its divisors is an integer number (990171).

Almost surely, 2^11263220 is an apocalyptic number.

11263220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11263220 is an abundant number, since it is smaller than the sum of its proper divisors (12500884).

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

11263220 is a wasteful number, since it uses less digits than its factorization.

11263220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 11263220 is about 3356.0721088797. The cubic root of 11263220 is about 224.1579721126.

Adding to 11263220 its reverse (2236211), we get a palindrome (13499431).

The spelling of 11263220 in words is "eleven million, two hundred sixty-three thousand, two hundred twenty".