12420268 has 48 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 4939776.

The previous prime is 12420263. The next prime is 12420269. The reversal of 12420268 is 86202421.

It is a happy number.

12420268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12420263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46038 + ... + 46306.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^12420268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335840).

12420268 is an abundant number, since it is smaller than the sum of its proper divisors (14251412).

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

12420268 is a wasteful number, since it uses less digits than its factorization.

12420268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 12420268 is about 3524.2400599278. The cubic root of 12420268 is about 231.5849445779.

Adding to 12420268 its reverse (86202421), we get a palindrome (98622689).

The spelling of 12420268 in words is "twelve million, four hundred twenty thousand, two hundred sixty-eight".