12381834 has 16 divisors (see below), whose sum is σ = 25562880. Its totient is φ = 3994080.

The previous prime is 12381833. The next prime is 12381847. The reversal of 12381834 is 43818321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12381833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33099 + ... + 33470.

It is an arithmetic number, because the mean of its divisors is an integer number (1597680).

Almost surely, 2^12381834 is an apocalyptic number.

12381834 is an abundant number, since it is smaller than the sum of its proper divisors (13181046).

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

12381834 is a wasteful number, since it uses less digits than its factorization.

12381834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66605.

The product of its digits is 4608, while the sum is 30.

The square root of 12381834 is about 3518.7830282642. The cubic root of 12381834 is about 231.3458211129.

The spelling of 12381834 in words is "twelve million, three hundred eighty-one thousand, eight hundred thirty-four".