12454212340 has 24 divisors (see below), whose sum is σ = 27530364960. Its totient is φ = 4719490848.

The previous prime is 12454212317. The next prime is 12454212341. The reversal of 12454212340 is 4321245421.

12454212340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12454212299 and 12454212308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454212341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16386742 + ... + 16387501.

It is an arithmetic number, because the mean of its divisors is an integer number (1147098540).

Almost surely, 2^12454212340 is an apocalyptic number.

12454212340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12454212340 is an abundant number, since it is smaller than the sum of its proper divisors (15076152620).

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

12454212340 is a wasteful number, since it uses less digits than its factorization.

12454212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32774271 (or 32774269 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 12454212340 its reverse (4321245421), we get a palindrome (16775457761).

The spelling of 12454212340 in words is "twelve billion, four hundred fifty-four million, two hundred twelve thousand, three hundred forty".