12343278 has 16 divisors (see below), whose sum is σ = 25025616. Its totient is φ = 4057920.

The previous prime is 12343271. The next prime is 12343283. The reversal of 12343278 is 87234321.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12343271) 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, 13653 + ... + 14528.

It is an arithmetic number, because the mean of its divisors is an integer number (1564101).

Almost surely, 2^12343278 is an apocalyptic number.

12343278 is an abundant number, since it is smaller than the sum of its proper divisors (12682338).

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

12343278 is a wasteful number, since it uses less digits than its factorization.

12343278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28259.

The product of its digits is 8064, while the sum is 30.

The square root of 12343278 is about 3513.3001579711. The cubic root of 12343278 is about 231.1054408913.

Adding to 12343278 its reverse (87234321), we get a palindrome (99577599).

It can be divided in two parts, 12343 and 278, that added together give a palindrome (12621).

The spelling of 12343278 in words is "twelve million, three hundred forty-three thousand, two hundred seventy-eight".