12422688 has 24 divisors (see below), whose sum is σ = 32609808. Its totient is φ = 4140864.

The previous prime is 12422687. The next prime is 12422747. The reversal of 12422688 is 88622421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12422687) 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, 64606 + ... + 64797.

It is an arithmetic number, because the mean of its divisors is an integer number (1358742).

Almost surely, 2^12422688 is an apocalyptic number.

It is an amenable number.

12422688 is an abundant number, since it is smaller than the sum of its proper divisors (20187120).

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

12422688 is a wasteful number, since it uses less digits than its factorization.

12422688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129416 (or 129408 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 12422688 is about 3524.5833796351. The cubic root of 12422688 is about 231.5999844888.

The spelling of 12422688 in words is "twelve million, four hundred twenty-two thousand, six hundred eighty-eight".