12667434 has 48 divisors (see below), whose sum is σ = 28614432. Its totient is φ = 3716064.

The previous prime is 12667427. The next prime is 12667439. The reversal of 12667434 is 43476621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12667395 and 12667404.

It is not an unprimeable number, because it can be changed into a prime (12667439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41109 + ... + 41415.

It is an arithmetic number, because the mean of its divisors is an integer number (596134).

Almost surely, 2^12667434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12667434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14307216).

12667434 is an abundant number, since it is smaller than the sum of its proper divisors (15946998).

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

12667434 is a wasteful number, since it uses less digits than its factorization.

12667434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 348 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 12667434 is about 3559.1338834048. The cubic root of 12667434 is about 233.1110622569. Note that the first 3 decimals are identical.

The spelling of 12667434 in words is "twelve million, six hundred sixty-seven thousand, four hundred thirty-four".