1340423342 has 8 divisors (see below), whose sum is σ = 2038954032. Its totient is φ = 660772000.

The previous prime is 1340423317. The next prime is 1340423351. The reversal of 1340423342 is 2433240431.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4719659 + ... + 4719942.

It is an arithmetic number, because the mean of its divisors is an integer number (254869254).

Almost surely, 2^1340423342 is an apocalyptic number.

1340423342 is a deficient number, since it is larger than the sum of its proper divisors (698530690).

1340423342 is an equidigital number, since it uses as much as digits as its factorization.

1340423342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9439674.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1340423342 is about 36611.7923898844. The cubic root of 1340423342 is about 1102.5898595865.

Adding to 1340423342 its reverse (2433240431), we get a palindrome (3773663773).

The spelling of 1340423342 in words is "one billion, three hundred forty million, four hundred twenty-three thousand, three hundred forty-two".