12846438 has 72 divisors (see below), whose sum is σ = 31884840. Its totient is φ = 3849120.

The previous prime is 12846433. The next prime is 12846439. The reversal of 12846438 is 83464821.

12846438 is a `hidden beast` number, since 1 + 2 + 8 + 4 + 643 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12846433) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 144298 + ... + 144386.

It is an arithmetic number, because the mean of its divisors is an integer number (442845).

Almost surely, 2^12846438 is an apocalyptic number.

12846438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12846438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15942420).

12846438 is an abundant number, since it is smaller than the sum of its proper divisors (19038402).

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

12846438 is an frugal number, since it uses more digits than its factorization.

12846438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 105 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 12846438 is about 3584.1927961537. The cubic root of 12846438 is about 234.2039641765.

The spelling of 12846438 in words is "twelve million, eight hundred forty-six thousand, four hundred thirty-eight".