12342457 has 8 divisors (see below), whose sum is σ = 13031360. Its totient is φ = 11657520.

The previous prime is 12342437. The next prime is 12342461. The reversal of 12342457 is 75424321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12342457 - 2¹¹ = 12340409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12342437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7228 + ... + 8770.

It is an arithmetic number, because the mean of its divisors is an integer number (1628920).

Almost surely, 2^12342457 is an apocalyptic number.

It is an amenable number.

12342457 is a deficient number, since it is larger than the sum of its proper divisors (688903).

12342457 is a wasteful number, since it uses less digits than its factorization.

12342457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983.

The product of its digits is 6720, while the sum is 28.

The square root of 12342457 is about 3513.1833143177. The cubic root of 12342457 is about 231.1003168669.

Adding to 12342457 its reverse (75424321), we get a palindrome (87766778).

The spelling of 12342457 in words is "twelve million, three hundred forty-two thousand, four hundred fifty-seven".