11631288 has 32 divisors (see below), whose sum is σ = 29433600. Its totient is φ = 3829728.

The previous prime is 11631271. The next prime is 11631289. The reversal of 11631288 is 88213611.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928 + ... + 4911.

It is an arithmetic number, because the mean of its divisors is an integer number (919800).

Almost surely, 2^11631288 is an apocalyptic number.

It is an amenable number.

11631288 is an abundant number, since it is smaller than the sum of its proper divisors (17802312).

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

11631288 is a wasteful number, since it uses less digits than its factorization.

11631288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931 (or 5927 counting only the distinct ones).

The product of its digits is 2304, while the sum is 30.

The square root of 11631288 is about 3410.4674166454. The cubic root of 11631288 is about 226.5735815396.

Adding to 11631288 its reverse (88213611), we get a palindrome (99844899).

The spelling of 11631288 in words is "eleven million, six hundred thirty-one thousand, two hundred eighty-eight".