11724288 has 80 divisors (see below), whose sum is σ = 33145200. Its totient is φ = 3670016.

The previous prime is 11724283. The next prime is 11724299. The reversal of 11724288 is 88242711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11724281) 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, 25888 + ... + 26336.

It is an arithmetic number, because the mean of its divisors is an integer number (414315).

Almost surely, 2^11724288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11724288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16572600).

11724288 is an abundant number, since it is smaller than the sum of its proper divisors (21420912).

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

11724288 is an equidigital number, since it uses as much as digits as its factorization.

11724288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 471 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 11724288 is about 3424.0747655389. The cubic root of 11724288 is about 227.1758487851.

Adding to 11724288 its reverse (88242711), we get a palindrome (99966999).

It can be divided in two parts, 1172 and 4288, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 11724288 in words is "eleven million, seven hundred twenty-four thousand, two hundred eighty-eight".