11518272 has 42 divisors (see below), whose sum is σ = 33016698. Its totient is φ = 3839232.

The previous prime is 11518271. The next prime is 11518277. The reversal of 11518272 is 27281511.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 389376 = 3336^2 + 624^2 .

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11518271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9423 + ... + 10574.

Almost surely, 2^11518272 is an apocalyptic number.

11518272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11518272 is an abundant number, since it is smaller than the sum of its proper divisors (21498426).

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

11518272 is a wasteful number, since it uses less digits than its factorization.

11518272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015 (or 20002 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 11518272 is about 3393.8579817075. The cubic root of 11518272 is about 225.8373539344.

Adding to 11518272 its reverse (27281511), we get a palindrome (38799783).

The spelling of 11518272 in words is "eleven million, five hundred eighteen thousand, two hundred seventy-two".