12434304340 has 24 divisors (see below), whose sum is σ = 26197107552. Its totient is φ = 4957518240.

The previous prime is 12434304313. The next prime is 12434304341. The reversal of 12434304340 is 4340343421.

It is a super-2 number, since 2×12434304340² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12434304299 and 12434304308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434304341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006426 + ... + 1018705.

It is an arithmetic number, because the mean of its divisors is an integer number (1091546148).

Almost surely, 2^12434304340 is an apocalyptic number.

12434304340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434304340 is an abundant number, since it is smaller than the sum of its proper divisors (13762803212).

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

12434304340 is a wasteful number, since it uses less digits than its factorization.

12434304340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025447 (or 2025445 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12434304340 its reverse (4340343421), we get a palindrome (16774647761).

The spelling of 12434304340 in words is "twelve billion, four hundred thirty-four million, three hundred four thousand, three hundred forty".