11939808 has 48 divisors (see below), whose sum is σ = 31525200. Its totient is φ = 3956736.

The previous prime is 11939791. The next prime is 11939813. The reversal of 11939808 is 80893911.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26368 + ... + 26816.

It is an arithmetic number, because the mean of its divisors is an integer number (656775).

Almost surely, 2^11939808 is an apocalyptic number.

It is an amenable number.

11939808 is an abundant number, since it is smaller than the sum of its proper divisors (19585392).

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

11939808 is a wasteful number, since it uses less digits than its factorization.

11939808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 11939808 is about 3455.4027261667. The cubic root of 11939808 is about 228.5594142495.

The spelling of 11939808 in words is "eleven million, nine hundred thirty-nine thousand, eight hundred eight".