11821914 has 48 divisors (see below), whose sum is σ = 29047200. Its totient is φ = 3444768.

The previous prime is 11821913. The next prime is 11821961. The reversal of 11821914 is 41912811.

11821914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11821913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3117 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (605150).

Almost surely, 2^11821914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11821914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14523600).

11821914 is an abundant number, since it is smaller than the sum of its proper divisors (17225286).

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

11821914 is a wasteful number, since it uses less digits than its factorization.

11821914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699 (or 2696 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 11821914 is about 3438.3010339410. The cubic root of 11821914 is about 227.8046572461.

It can be divided in two parts, 118 and 21914, that multiplied together give a palindrome (2585852).

The spelling of 11821914 in words is "eleven million, eight hundred twenty-one thousand, nine hundred fourteen".