12403449422 has 32 divisors (see below), whose sum is σ = 22923429312. Its totient is φ = 4901554944.

The previous prime is 12403449397. The next prime is 12403449427. The reversal of 12403449422 is 22494430421.

It is a happy number.

It is a super-2 number, since 2×12403449422² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403449427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134168 + ... + 206900.

It is an arithmetic number, because the mean of its divisors is an integer number (716357166).

Almost surely, 2^12403449422 is an apocalyptic number.

12403449422 is a deficient number, since it is larger than the sum of its proper divisors (10519979890).

12403449422 is a wasteful number, since it uses less digits than its factorization.

12403449422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73692.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 12403449422 its reverse (22494430421), we get a palindrome (34897879843).

The spelling of 12403449422 in words is "twelve billion, four hundred three million, four hundred forty-nine thousand, four hundred twenty-two".