12442460357 has 4 divisors (see below), whose sum is σ = 12470172300. Its totient is φ = 12414748416.

The previous prime is 12442460347. The next prime is 12442460389. The reversal of 12442460357 is 75306424421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75306424421 = 12983 ⋅5800387.

It can be written as a sum of positive squares in 2 ways, for example, as 6001755841 + 6440704516 = 77471^2 + 80254^2 .

It is a cyclic number.

It is not a de Polignac number, because 12442460357 - 2²⁶ = 12375351493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12442460357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442460347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13855298 + ... + 13856195.

It is an arithmetic number, because the mean of its divisors is an integer number (3117543075).

Almost surely, 2^12442460357 is an apocalyptic number.

It is an amenable number.

12442460357 is a deficient number, since it is larger than the sum of its proper divisors (27711943).

12442460357 is an equidigital number, since it uses as much as digits as its factorization.

12442460357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27711942.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 12442460357 its reverse (75306424421), we get a palindrome (87748884778).

The spelling of 12442460357 in words is "twelve billion, four hundred forty-two million, four hundred sixty thousand, three hundred fifty-seven".