11819728 has 20 divisors (see below), whose sum is σ = 23034240. Its totient is φ = 5875424.

The previous prime is 11819719. The next prime is 11819749. The reversal of 11819728 is 82791811.

It is a congruent number.

It is an unprimeable number.

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, 801 + ... + 4927.

It is an arithmetic number, because the mean of its divisors is an integer number (1151712).

Almost surely, 2^11819728 is an apocalyptic number.

It is an amenable number.

11819728 is a deficient number, since it is larger than the sum of its proper divisors (11214512).

11819728 is a wasteful number, since it uses less digits than its factorization.

11819728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4308 counting only the distinct ones).

The product of its digits is 8064, while the sum is 37.

The square root of 11819728 is about 3437.9831296852. The cubic root of 11819728 is about 227.7906151973.

The spelling of 11819728 in words is "eleven million, eight hundred nineteen thousand, seven hundred twenty-eight".