11681304 has 16 divisors (see below), whose sum is σ = 29203320. Its totient is φ = 3893760.

The previous prime is 11681303. The next prime is 11681311. The reversal of 11681304 is 40318611.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 486721 = 11681304 / (1 + 1 + 6 + 8 + 1 + 3 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 243337 + ... + 243384.

Almost surely, 2^11681304 is an apocalyptic number.

It is an amenable number.

11681304 is an abundant number, since it is smaller than the sum of its proper divisors (17522016).

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

11681304 is a wasteful number, since it uses less digits than its factorization.

11681304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486730 (or 486726 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 11681304 is about 3417.7922698725. The cubic root of 11681304 is about 226.8978820959.

Adding to 11681304 its reverse (40318611), we get a palindrome (51999915).

The spelling of 11681304 in words is "eleven million, six hundred eighty-one thousand, three hundred four".