12408438 has 16 divisors (see below), whose sum is σ = 28362240. Its totient is φ = 3545256.

The previous prime is 12408427. The next prime is 12408443. The reversal of 12408438 is 83480421.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147678 + ... + 147761.

It is an arithmetic number, because the mean of its divisors is an integer number (1772640).

Almost surely, 2^12408438 is an apocalyptic number.

12408438 is an abundant number, since it is smaller than the sum of its proper divisors (15953802).

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

12408438 is a wasteful number, since it uses less digits than its factorization.

12408438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295451.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 12408438 is about 3522.5612840659. The cubic root of 12408438 is about 231.5113948990.

Adding to 12408438 its reverse (83480421), we get a palindrome (95888859).

The spelling of 12408438 in words is "twelve million, four hundred eight thousand, four hundred thirty-eight".