11488644 has 18 divisors (see below), whose sum is σ = 29040830. Its totient is φ = 3829536.

The previous prime is 11488637. The next prime is 11488699. The reversal of 11488644 is 44688411.

11488644 is a `hidden beast` number, since 1 + 1 + 4 + 8 + 8 + 644 = 666.

11488644 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 4359744 = 2670^2 + 2088^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 319129 = 11488644 / (1 + 1 + 4 + 8 + 8 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 11488599 and 11488608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159529 + ... + 159600.

Almost surely, 2^11488644 is an apocalyptic number.

It is an amenable number.

11488644 is an abundant number, since it is smaller than the sum of its proper divisors (17552186).

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

11488644 is a wasteful number, since it uses less digits than its factorization.

11488644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319139 (or 319134 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 11488644 is about 3389.4902271581. The cubic root of 11488644 is about 225.6435501408.

The spelling of 11488644 in words is "eleven million, four hundred eighty-eight thousand, six hundred forty-four".