12287322 has 32 divisors (see below), whose sum is σ = 27518400. Its totient is φ = 4063824.

The previous prime is 12287321. The next prime is 12287333. The reversal of 12287322 is 22378221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12287321) 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, 6688 + ... + 8324.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^12287322 is an apocalyptic number.

12287322 is an abundant number, since it is smaller than the sum of its proper divisors (15231078).

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

12287322 is a wasteful number, since it uses less digits than its factorization.

12287322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787 (or 1781 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 12287322 is about 3505.3276594350. The cubic root of 12287322 is about 230.7556870513.

The spelling of 12287322 in words is "twelve million, two hundred eighty-seven thousand, three hundred twenty-two".