12906434 has 16 divisors (see below), whose sum is σ = 21578400. Its totient is φ = 5753664.

The previous prime is 12906433. The next prime is 12906449. The reversal of 12906434 is 43460921.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12906397 and 12906406.

It is not an unprimeable number, because it can be changed into a prime (12906433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9344 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (1348650).

Almost surely, 2^12906434 is an apocalyptic number.

12906434 is a deficient number, since it is larger than the sum of its proper divisors (8671966).

12906434 is a wasteful number, since it uses less digits than its factorization.

12906434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20017.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 12906434 is about 3592.5525744239. The cubic root of 12906434 is about 234.5679946125.

The spelling of 12906434 in words is "twelve million, nine hundred six thousand, four hundred thirty-four".