11881441 has 16 divisors (see below), whose sum is σ = 14696640. Its totient is φ = 9443520.

The previous prime is 11881439. The next prime is 11881447. The reversal of 11881441 is 14418811.

It is a cyclic number.

It is not a de Polignac number, because 11881441 - 2¹ = 11881439 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 531 + ... + 4903.

It is an arithmetic number, because the mean of its divisors is an integer number (918540).

Almost surely, 2^11881441 is an apocalyptic number.

11881441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11881441 is a deficient number, since it is larger than the sum of its proper divisors (2815199).

11881441 is a wasteful number, since it uses less digits than its factorization.

11881441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416.

The product of its digits is 1024, while the sum is 28.

The square root of 11881441 is about 3446.9466198362. The cubic root of 11881441 is about 228.1863729537.

It can be divided in two parts, 11881 and 441, that multiplied together give a square (5239521 = 2289²).

The spelling of 11881441 in words is "eleven million, eight hundred eighty-one thousand, four hundred forty-one".