11491968 has 32 divisors (see below), whose sum is σ = 30526560. Its totient is φ = 3830528.

The previous prime is 11491967. The next prime is 11491993. The reversal of 11491968 is 86919411.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14580 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (953955).

Almost surely, 2^11491968 is an apocalyptic number.

It is an amenable number.

11491968 is an abundant number, since it is smaller than the sum of its proper divisors (19034592).

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

11491968 is an equidigital number, since it uses as much as digits as its factorization.

11491968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29944 (or 29932 counting only the distinct ones).

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

The square root of 11491968 is about 3389.9805309175. The cubic root of 11491968 is about 225.6653097972.

The spelling of 11491968 in words is "eleven million, four hundred ninety-one thousand, nine hundred sixty-eight".