320005342 has 4 divisors (see below), whose sum is σ = 480008016. Its totient is φ = 160002670.

The previous prime is 320005339. The next prime is 320005373. The reversal of 320005342 is 243500023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243500023 = 13 ⋅18730771.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80001334 + ... + 80001337.

It is an arithmetic number, because the mean of its divisors is an integer number (120002004).

Almost surely, 2^320005342 is an apocalyptic number.

320005342 is a deficient number, since it is larger than the sum of its proper divisors (160002674).

320005342 is a wasteful number, since it uses less digits than its factorization.

320005342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160002673.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 320005342 is about 17888.6931328144. The cubic root of 320005342 is about 683.9941847710.

Adding to 320005342 its reverse (243500023), we get a palindrome (563505365).

The spelling of 320005342 in words is "three hundred twenty million, five thousand, three hundred forty-two".