12026406 has 64 divisors (see below), whose sum is σ = 28892160. Its totient is φ = 3265920.

The previous prime is 12026381. The next prime is 12026423. The reversal of 12026406 is 60462021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110280 + ... + 110388.

It is an arithmetic number, because the mean of its divisors is an integer number (451440).

Almost surely, 2^12026406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12026406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14446080).

12026406 is an abundant number, since it is smaller than the sum of its proper divisors (16865754).

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

12026406 is a wasteful number, since it uses less digits than its factorization.

12026406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 12026406 is about 3467.9108985094. The cubic root of 12026406 is about 229.1106550641.

Adding to 12026406 its reverse (60462021), we get a palindrome (72488427).

The spelling of 12026406 in words is "twelve million, twenty-six thousand, four hundred six".