11240505 has 32 divisors (see below), whose sum is σ = 20373120. Its totient is φ = 5878080.

The previous prime is 11240483. The next prime is 11240521. The reversal of 11240505 is 50504211.

It is not a de Polignac number, because 11240505 - 2⁸ = 11240249 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6370 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (636660).

Almost surely, 2^11240505 is an apocalyptic number.

11240505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11240505 is a deficient number, since it is larger than the sum of its proper divisors (9132615).

11240505 is a wasteful number, since it uses less digits than its factorization.

11240505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 11240505 is about 3352.6862364379. The cubic root of 11240505 is about 224.0071811580.

Adding to 11240505 its reverse (50504211), we get a palindrome (61744716).

The spelling of 11240505 in words is "eleven million, two hundred forty thousand, five hundred five".