11912868 has 72 divisors (see below), whose sum is σ = 33415200. Its totient is φ = 3548160.

The previous prime is 11912851. The next prime is 11912891. The reversal of 11912868 is 86821911.

11912868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26308 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (464100).

Almost surely, 2^11912868 is an apocalyptic number.

11912868 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 11912868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16707600).

11912868 is an abundant number, since it is smaller than the sum of its proper divisors (21502332).

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

11912868 is a wasteful number, since it uses less digits than its factorization.

11912868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 11912868 is about 3451.5022816159. The cubic root of 11912868 is about 228.3873839163.

The spelling of 11912868 in words is "eleven million, nine hundred twelve thousand, eight hundred sixty-eight".