12580406 has 8 divisors (see below), whose sum is σ = 18969984. Its totient is φ = 6257080.

The previous prime is 12580397. The next prime is 12580411. The reversal of 12580406 is 60408521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16085 + ... + 16848.

It is an arithmetic number, because the mean of its divisors is an integer number (2371248).

Almost surely, 2^12580406 is an apocalyptic number.

12580406 is a deficient number, since it is larger than the sum of its proper divisors (6389578).

12580406 is a wasteful number, since it uses less digits than its factorization.

12580406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33126.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12580406 is about 3546.8868039451. The cubic root of 12580406 is about 232.5759939658.

Adding to 12580406 its reverse (60408521), we get a palindrome (72988927).

The spelling of 12580406 in words is "twelve million, five hundred eighty thousand, four hundred six".