12434340 has 24 divisors (see below), whose sum is σ = 34816320. Its totient is φ = 3315808.

The previous prime is 12434311. The next prime is 12434347. The reversal of 12434340 is 4343421.

It is a super-2 number, since 2×12434340² = 309225622471200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12434347) 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, 103560 + ... + 103679.

It is an arithmetic number, because the mean of its divisors is an integer number (1450680).

Almost surely, 2^12434340 is an apocalyptic number.

12434340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434340 is an abundant number, since it is smaller than the sum of its proper divisors (22381980).

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

12434340 is a wasteful number, since it uses less digits than its factorization.

12434340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207251 (or 207249 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 12434340 is about 3526.2359535346. The cubic root of 12434340 is about 231.6723724650.

Adding to 12434340 its reverse (4343421), we get a palindrome (16777761).

The spelling of 12434340 in words is "twelve million, four hundred thirty-four thousand, three hundred forty".