12228260 has 72 divisors (see below), whose sum is σ = 29315328. Its totient is φ = 4276800.

The previous prime is 12228257. The next prime is 12228269. The reversal of 12228260 is 6282221.

12228260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12228269) 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, 74939 + ... + 75101.

Almost surely, 2^12228260 is an apocalyptic number.

12228260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12228260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14657664).

12228260 is an abundant number, since it is smaller than the sum of its proper divisors (17087068).

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

12228260 is a wasteful number, since it uses less digits than its factorization.

12228260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12228260 is about 3496.8929065672. The cubic root of 12228260 is about 230.3853653015.

It can be divided in two parts, 122 and 28260, that added together give a palindrome (28382).

The spelling of 12228260 in words is "twelve million, two hundred twenty-eight thousand, two hundred sixty".