11728680 has 64 divisors (see below), whose sum is σ = 36020160. Its totient is φ = 3053568.

The previous prime is 11728663. The next prime is 11728697. The reversal of 11728680 is 8682711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11728663) and next prime (11728697).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4024 + ... + 6296.

It is an arithmetic number, because the mean of its divisors is an integer number (562815).

Almost surely, 2^11728680 is an apocalyptic number.

11728680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11728680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18010080).

11728680 is an abundant number, since it is smaller than the sum of its proper divisors (24291480).

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

11728680 is a wasteful number, since it uses less digits than its factorization.

11728680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 11728680 is about 3424.7160466234. The cubic root of 11728680 is about 227.2042124624.

The spelling of 11728680 in words is "eleven million, seven hundred twenty-eight thousand, six hundred eighty".