11919168 has 42 divisors (see below), whose sum is σ = 34165794. Its totient is φ = 3972864.

The previous prime is 11919163. The next prime is 11919199. The reversal of 11919168 is 86191911.

It can be written as a sum of positive squares in only one way, i.e., 11614464 + 304704 = 3408^2 + 552^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11919161) 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 5 ways as a sum of consecutive naturals, for example, 9771 + ... + 10922.

Almost surely, 2^11919168 is an apocalyptic number.

11919168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11919168 is an abundant number, since it is smaller than the sum of its proper divisors (22246626).

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

11919168 is a wasteful number, since it uses less digits than its factorization.

11919168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20711 (or 20698 counting only the distinct ones).

The product of its digits is 3888, while the sum is 36.

The square root of 11919168 is about 3452.4148070590. The cubic root of 11919168 is about 228.4276369423.

The spelling of 11919168 in words is "eleven million, nine hundred nineteen thousand, one hundred sixty-eight".