12288622 has 4 divisors (see below), whose sum is σ = 18432936. Its totient is φ = 6144310.

The previous prime is 12288607. The next prime is 12288623. The reversal of 12288622 is 22688221.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3072154 + ... + 3072157.

It is an arithmetic number, because the mean of its divisors is an integer number (4608234).

Almost surely, 2^12288622 is an apocalyptic number.

12288622 is a deficient number, since it is larger than the sum of its proper divisors (6144314).

12288622 is an equidigital number, since it uses as much as digits as its factorization.

12288622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6144313.

The product of its digits is 6144, while the sum is 31.

The square root of 12288622 is about 3505.5130865538. The cubic root of 12288622 is about 230.7638247566.

The spelling of 12288622 in words is "twelve million, two hundred eighty-eight thousand, six hundred twenty-two".