12346434340 has 24 divisors (see below), whose sum is σ = 26530479360. Its totient is φ = 4823722848.

The previous prime is 12346434337. The next prime is 12346434349. The reversal of 12346434340 is 4343464321.

It is a junction number, because it is equal to n+sod(n) for n = 12346434296 and 12346434305.

It is not an unprimeable number, because it can be changed into a prime (12346434349) 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, 7177300 + ... + 7179019.

It is an arithmetic number, because the mean of its divisors is an integer number (1105436640).

Almost surely, 2^12346434340 is an apocalyptic number.

12346434340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12346434340 is an abundant number, since it is smaller than the sum of its proper divisors (14184045020).

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

12346434340 is a wasteful number, since it uses less digits than its factorization.

12346434340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14356371 (or 14356369 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 12346434340 its reverse (4343464321), we get a palindrome (16689898661).

The spelling of 12346434340 in words is "twelve billion, three hundred forty-six million, four hundred thirty-four thousand, three hundred forty".