11855808 has 70 divisors (see below), whose sum is σ = 35159696. Its totient is φ = 3950208.

The previous prime is 11855773. The next prime is 11855813. The reversal of 11855808 is 80855811.

11855808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4041 + ... + 6327.

Almost surely, 2^11855808 is an apocalyptic number.

11855808 is a gapful number since it is divisible by the number (18) 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 11855808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17579848).

11855808 is an abundant number, since it is smaller than the sum of its proper divisors (23303888).

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

11855808 is an equidigital number, since it uses as much as digits as its factorization.

11855808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2292 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 11855808 is about 3443.2263939509. The cubic root of 11855808 is about 228.0221585112.

The spelling of 11855808 in words is "eleven million, eight hundred fifty-five thousand, eight hundred eight".