12008406 has 32 divisors (see below), whose sum is σ = 24837120. Its totient is φ = 3868416.

The previous prime is 12008371. The next prime is 12008411. The reversal of 12008406 is 60480021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27135 + ... + 27573.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 2^12008406 is an apocalyptic number.

12008406 is an abundant number, since it is smaller than the sum of its proper divisors (12828714).

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

12008406 is a wasteful number, since it uses less digits than its factorization.

12008406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12008406 is about 3465.3147043234. The cubic root of 12008406 is about 228.9962941882.

Adding to 12008406 its reverse (60480021), we get a palindrome (72488427).

The spelling of 12008406 in words is "twelve million, eight thousand, four hundred six".