12420414 has 48 divisors (see below), whose sum is σ = 29577600. Its totient is φ = 3749328.

The previous prime is 12420413. The next prime is 12420451. The reversal of 12420414 is 41402421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420413) 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, 7077 + ... + 8655.

It is an arithmetic number, because the mean of its divisors is an integer number (616200).

Almost surely, 2^12420414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14788800).

12420414 is an abundant number, since it is smaller than the sum of its proper divisors (17157186).

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

12420414 is a wasteful number, since it uses less digits than its factorization.

12420414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 12420414 is about 3524.2607735524. The cubic root of 12420414 is about 231.5858519998.

Adding to 12420414 its reverse (41402421), we get a palindrome (53822835).

The spelling of 12420414 in words is "twelve million, four hundred twenty thousand, four hundred fourteen".