12438494 has 12 divisors (see below), whose sum is σ = 18854304. Its totient is φ = 6154284.

The previous prime is 12438487. The next prime is 12438497. The reversal of 12438494 is 49483421.

It is a super-2 number, since 2×12438494² = 309432265976072, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438497) 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 5 ways as a sum of consecutive naturals, for example, 55667 + ... + 55889.

It is an arithmetic number, because the mean of its divisors is an integer number (1571192).

Almost surely, 2^12438494 is an apocalyptic number.

12438494 is a deficient number, since it is larger than the sum of its proper divisors (6415810).

12438494 is an equidigital number, since it uses as much as digits as its factorization.

12438494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 392 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 12438494 is about 3526.8249176845. The cubic root of 12438494 is about 231.6981682286.

The spelling of 12438494 in words is "twelve million, four hundred thirty-eight thousand, four hundred ninety-four".