11881444 has 12 divisors (see below), whose sum is σ = 20861568. Its totient is φ = 5921000.

The previous prime is 11881439. The next prime is 11881447. The reversal of 11881444 is 44418811.

It is not an unprimeable number, because it can be changed into a prime (11881447) 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 3 ways as a sum of consecutive naturals, for example, 3532 + ... + 6019.

It is an arithmetic number, because the mean of its divisors is an integer number (1738464).

Almost surely, 2^11881444 is an apocalyptic number.

It is an amenable number.

11881444 is a deficient number, since it is larger than the sum of its proper divisors (8980124).

11881444 is a wasteful number, since it uses less digits than its factorization.

11881444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9866 (or 9864 counting only the distinct ones).

The product of its digits is 4096, while the sum is 31.

The square root of 11881444 is about 3446.9470550039. The cubic root of 11881444 is about 228.1863921589.

The spelling of 11881444 in words is "eleven million, eight hundred eighty-one thousand, four hundred forty-four".