12586406 has 24 divisors (see below), whose sum is σ = 22367280. Its totient is φ = 5203296.

The previous prime is 12586397. The next prime is 12586421. The reversal of 12586406 is 60468521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11240 + ... + 12308.

It is an arithmetic number, because the mean of its divisors is an integer number (931970).

Almost surely, 2^12586406 is an apocalyptic number.

12586406 is a deficient number, since it is larger than the sum of its proper divisors (9780874).

12586406 is a wasteful number, since it uses less digits than its factorization.

12586406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12586406 is about 3547.7325152835. The cubic root of 12586406 is about 232.6129624117.

The spelling of 12586406 in words is "twelve million, five hundred eighty-six thousand, four hundred six".