12489222 has 8 divisors (see below), whose sum is σ = 24978456. Its totient is φ = 4163072.

The previous prime is 12489167. The next prime is 12489229. The reversal of 12489222 is 22298421.

It is a sphenic number, since it is the product of 3 distinct primes.

12489222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12489222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12489229) 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 3 ways as a sum of consecutive naturals, for example, 1040763 + ... + 1040774.

It is an arithmetic number, because the mean of its divisors is an integer number (3122307).

Almost surely, 2^12489222 is an apocalyptic number.

12489222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12489222 is a wasteful number, since it uses less digits than its factorization.

12489222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081542.

The product of its digits is 4608, while the sum is 30.

The square root of 12489222 is about 3534.0093378484. The cubic root of 12489222 is about 232.0127197743.

The spelling of 12489222 in words is "twelve million, four hundred eighty-nine thousand, two hundred twenty-two".