11409768 has 64 divisors (see below), whose sum is σ = 32068800. Its totient is φ = 3758400.

The previous prime is 11409763. The next prime is 11409773. The reversal of 11409768 is 86790411.

It is an interprime number because it is at equal distance from previous prime (11409763) and next prime (11409773).

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

It is not an unprimeable number, because it can be changed into a prime (11409763) 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 15 ways as a sum of consecutive naturals, for example, 21555 + ... + 22077.

It is an arithmetic number, because the mean of its divisors is an integer number (501075).

Almost surely, 2^11409768 is an apocalyptic number.

11409768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11409768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16034400).

11409768 is an abundant number, since it is smaller than the sum of its proper divisors (20659032).

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

11409768 is a wasteful number, since it uses less digits than its factorization.

11409768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 11409768 is about 3377.8348094600. The cubic root of 11409768 is about 225.1259739005.

The spelling of 11409768 in words is "eleven million, four hundred nine thousand, seven hundred sixty-eight".