12578406 has 8 divisors (see below), whose sum is σ = 25156824. Its totient is φ = 4192800.

The previous prime is 12578393. The next prime is 12578407. The reversal of 12578406 is 60487521.

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

12578406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12578407) by changing a digit.

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, 1048195 + ... + 1048206.

It is an arithmetic number, because the mean of its divisors is an integer number (3144603).

Almost surely, 2^12578406 is an apocalyptic number.

12578406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12578406 is a wasteful number, since it uses less digits than its factorization.

12578406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096406.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12578406 is about 3546.6048553511. The cubic root of 12578406 is about 232.5636685385.

The spelling of 12578406 in words is "twelve million, five hundred seventy-eight thousand, four hundred six".