320342340 has 24 divisors (see below), whose sum is σ = 896958720. Its totient is φ = 85424608.

The previous prime is 320342333. The next prime is 320342353. The reversal of 320342340 is 43243023.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2669460 + ... + 2669579.

It is an arithmetic number, because the mean of its divisors is an integer number (37373280).

Almost surely, 2^320342340 is an apocalyptic number.

320342340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320342340 is an abundant number, since it is smaller than the sum of its proper divisors (576616380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320342340 is a wasteful number, since it uses less digits than its factorization.

320342340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339051 (or 5339049 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 320342340 is about 17898.1099560820. The cubic root of 320342340 is about 684.2342055606.

Adding to 320342340 its reverse (43243023), we get a palindrome (363585363).

The spelling of 320342340 in words is "three hundred twenty million, three hundred forty-two thousand, three hundred forty".