11808380 has 24 divisors (see below), whose sum is σ = 25206720. Its totient is φ = 4645440.

The previous prime is 11808373. The next prime is 11808389. The reversal of 11808380 is 8380811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11808389) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3620 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (1050280).

Almost surely, 2^11808380 is an apocalyptic number.

11808380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11808380 is an abundant number, since it is smaller than the sum of its proper divisors (13398340).

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

11808380 is a wasteful number, since it uses less digits than its factorization.

11808380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9749 (or 9747 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 11808380 is about 3436.3323471399. The cubic root of 11808380 is about 227.7176920412.

The spelling of 11808380 in words is "eleven million, eight hundred eight thousand, three hundred eighty".