12343378 has 16 divisors (see below), whose sum is σ = 19154520. Its totient is φ = 5961600.

The previous prime is 12343349. The next prime is 12343391. The reversal of 12343378 is 87334321.

It can be written as a sum of positive squares in 4 ways, for example, as 8450649 + 3892729 = 2907^2 + 1973^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8248 + ... + 9628.

Almost surely, 2^12343378 is an apocalyptic number.

12343378 is a deficient number, since it is larger than the sum of its proper divisors (6811142).

12343378 is a wasteful number, since it uses less digits than its factorization.

12343378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533.

The product of its digits is 12096, while the sum is 31.

The square root of 12343378 is about 3513.3143895757. The cubic root of 12343378 is about 231.1060649957.

Adding to 12343378 its reverse (87334321), we get a palindrome (99677699).

It can be divided in two parts, 12343 and 378, that added together give a palindrome (12721).

The spelling of 12343378 in words is "twelve million, three hundred forty-three thousand, three hundred seventy-eight".