11788880 has 80 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 4376064.

The previous prime is 11788879. The next prime is 11788883. The reversal of 11788880 is 8888711.

11788880 = 236² + 237² + ... + 364².

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11788883) 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 15 ways as a sum of consecutive naturals, for example, 79046 + ... + 79194.

It is an arithmetic number, because the mean of its divisors is an integer number (368280).

Almost surely, 2^11788880 is an apocalyptic number.

11788880 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 11788880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14731200).

11788880 is an abundant number, since it is smaller than the sum of its proper divisors (17673520).

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

11788880 is a wasteful number, since it uses less digits than its factorization.

11788880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 41.

The square root of 11788880 is about 3433.4938473805. The cubic root of 11788880 is about 227.5922742860.

The spelling of 11788880 in words is "eleven million, seven hundred eighty-eight thousand, eight hundred eighty".