12838406 has 16 divisors (see below), whose sum is σ = 22338816. Its totient is φ = 5419656.

The previous prime is 12838373. The next prime is 12838409. The reversal of 12838406 is 60483821.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12838409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5906 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (1396176).

Almost surely, 2^12838406 is an apocalyptic number.

12838406 is a deficient number, since it is larger than the sum of its proper divisors (9500410).

12838406 is a wasteful number, since it uses less digits than its factorization.

12838406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13763.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 12838406 is about 3583.0721455198. The cubic root of 12838406 is about 234.1551434211.

The spelling of 12838406 in words is "twelve million, eight hundred thirty-eight thousand, four hundred six".