12026420 has 24 divisors (see below), whose sum is σ = 28863744. Its totient is φ = 4123296.

The previous prime is 12026381. The next prime is 12026423. The reversal of 12026420 is 2462021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12026423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42812 + ... + 43091.

It is an arithmetic number, because the mean of its divisors is an integer number (1202656).

Almost surely, 2^12026420 is an apocalyptic number.

12026420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12026420 is an abundant number, since it is smaller than the sum of its proper divisors (16837324).

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

12026420 is a wasteful number, since it uses less digits than its factorization.

12026420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85919 (or 85917 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12026420 is about 3467.9129170151. The cubic root of 12026420 is about 229.1107439670.

Adding to 12026420 its reverse (2462021), we get a palindrome (14488441).

The spelling of 12026420 in words is "twelve million, twenty-six thousand, four hundred twenty".