12345622 has 16 divisors (see below), whose sum is σ = 18911232. Its totient is φ = 6043240.

The previous prime is 12345581. The next prime is 12345623. The reversal of 12345622 is 22654321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345623) 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 7 ways as a sum of consecutive naturals, for example, 32043 + ... + 32425.

It is an arithmetic number, because the mean of its divisors is an integer number (1181952).

Almost surely, 2^12345622 is an apocalyptic number.

12345622 is a deficient number, since it is larger than the sum of its proper divisors (6565610).

12345622 is a wasteful number, since it uses less digits than its factorization.

12345622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683.

The product of its digits is 2880, while the sum is 25.

The square root of 12345622 is about 3513.6337316231. The cubic root of 12345622 is about 231.1200690116.

Adding to 12345622 its reverse (22654321), we get a palindrome (34999943).

The spelling of 12345622 in words is "twelve million, three hundred forty-five thousand, six hundred twenty-two".