12343402 has 4 divisors (see below), whose sum is σ = 18515106. Its totient is φ = 6171700.

The previous prime is 12343399. The next prime is 12343403. The reversal of 12343402 is 20434321.

12343402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8767521 + 3575881 = 2961^2 + 1891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12343402.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085849 + ... + 3085852.

Almost surely, 2^12343402 is an apocalyptic number.

12343402 is a deficient number, since it is larger than the sum of its proper divisors (6171704).

12343402 is an equidigital number, since it uses as much as digits as its factorization.

12343402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171703.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12343402 is about 3513.3178051523. The cubic root of 12343402 is about 231.1062147803.

Adding to 12343402 its reverse (20434321), we get a palindrome (32777723).

The spelling of 12343402 in words is "twelve million, three hundred forty-three thousand, four hundred two".