12793438 has 16 divisors (see below), whose sum is σ = 22082400. Its totient is φ = 5445216.

The previous prime is 12793433. The next prime is 12793457. The reversal of 12793438 is 83439721.

It is a junction number, because it is equal to n+sod(n) for n = 12793397 and 12793406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12793433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (1380150).

Almost surely, 2^12793438 is an apocalyptic number.

12793438 is a deficient number, since it is larger than the sum of its proper divisors (9288962).

12793438 is a wasteful number, since it uses less digits than its factorization.

12793438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291.

The product of its digits is 36288, while the sum is 37.

The square root of 12793438 is about 3576.7915790552. The cubic root of 12793438 is about 233.8814384650.

It can be divided in two parts, 12793 and 438, that added together give a palindrome (13231).

The spelling of 12793438 in words is "twelve million, seven hundred ninety-three thousand, four hundred thirty-eight".