12438461 has 4 divisors (see below), whose sum is σ = 14215392. Its totient is φ = 10661532.

The previous prime is 12438451. The next prime is 12438473. The reversal of 12438461 is 16483421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12438461 - 2¹⁴ = 12422077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888455 + ... + 888468.

It is an arithmetic number, because the mean of its divisors is an integer number (3553848).

Almost surely, 2^12438461 is an apocalyptic number.

It is an amenable number.

12438461 is a deficient number, since it is larger than the sum of its proper divisors (1776931).

12438461 is an equidigital number, since it uses as much as digits as its factorization.

12438461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776930.

The product of its digits is 4608, while the sum is 29.

The square root of 12438461 is about 3526.8202392523. The cubic root of 12438461 is about 231.6979633258.

The spelling of 12438461 in words is "twelve million, four hundred thirty-eight thousand, four hundred sixty-one".