12343400 has 24 divisors (see below), whose sum is σ = 28698870. Its totient is φ = 4937280.

The previous prime is 12343399. The next prime is 12343403. The reversal of 12343400 is 434321.

It can be written as a sum of positive squares in 3 ways, for example, as 6360484 + 5982916 = 2522^2 + 2446^2 .

It is not an unprimeable number, because it can be changed into a prime (12343403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30659 + ... + 31058.

Almost surely, 2^12343400 is an apocalyptic number.

12343400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12343400 is an abundant number, since it is smaller than the sum of its proper divisors (16355470).

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

12343400 is a wasteful number, since it uses less digits than its factorization.

12343400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61733 (or 61724 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12343400 is about 3513.3175205210. The cubic root of 12343400 is about 231.1062022982.

Adding to 12343400 its reverse (434321), we get a palindrome (12777721).

The spelling of 12343400 in words is "twelve million, three hundred forty-three thousand, four hundred".