12588228 has 72 divisors (see below), whose sum is σ = 34306272. Its totient is φ = 3877632.

The previous prime is 12588227. The next prime is 12588239. The reversal of 12588228 is 82288521.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12588192 and 12588201.

It is not an unprimeable number, because it can be changed into a prime (12588227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40851 + ... + 41157.

It is an arithmetic number, because the mean of its divisors is an integer number (476476).

Almost surely, 2^12588228 is an apocalyptic number.

12588228 is a gapful number since it is divisible by the number (18) 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 12588228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17153136).

12588228 is an abundant number, since it is smaller than the sum of its proper divisors (21718044).

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

12588228 is a wasteful number, since it uses less digits than its factorization.

12588228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401 (or 396 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 12588228 is about 3547.9892897245. The cubic root of 12588228 is about 232.6241861709.

The spelling of 12588228 in words is "twelve million, five hundred eighty-eight thousand, two hundred twenty-eight".