12461638 has 8 divisors (see below), whose sum is σ = 21362832. Its totient is φ = 5340696.

The previous prime is 12461633. The next prime is 12461639. The reversal of 12461638 is 83616421.

It is a happy number.

12461638 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12461638 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12461633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445045 + ... + 445072.

It is an arithmetic number, because the mean of its divisors is an integer number (2670354).

Almost surely, 2^12461638 is an apocalyptic number.

12461638 is a deficient number, since it is larger than the sum of its proper divisors (8901194).

12461638 is an equidigital number, since it uses as much as digits as its factorization.

12461638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890126.

The product of its digits is 6912, while the sum is 31.

The square root of 12461638 is about 3530.1045310302. The cubic root of 12461638 is about 231.8417842197.

The spelling of 12461638 in words is "twelve million, four hundred sixty-one thousand, six hundred thirty-eight".