12340369 has 4 divisors (see below), whose sum is σ = 12388644. Its totient is φ = 12292096.

The previous prime is 12340343. The next prime is 12340373. The reversal of 12340369 is 96304321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7980625 + 4359744 = 2825^2 + 2088^2 .

It is a cyclic number.

It is not a de Polignac number, because 12340369 - 2¹¹ = 12338321 is a prime.

It is a super-2 number, since 2×12340369² = 304569414112322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12340309) 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 3 ways as a sum of consecutive naturals, for example, 23752 + ... + 24265.

It is an arithmetic number, because the mean of its divisors is an integer number (3097161).

Almost surely, 2^12340369 is an apocalyptic number.

It is an amenable number.

12340369 is a deficient number, since it is larger than the sum of its proper divisors (48275).

12340369 is an equidigital number, since it uses as much as digits as its factorization.

12340369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48274.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 12340369 is about 3512.8861353594. The cubic root of 12340369 is about 231.0872842194.

The spelling of 12340369 in words is "twelve million, three hundred forty thousand, three hundred sixty-nine".