320065738 has 8 divisors (see below), whose sum is σ = 480189888. Its totient is φ = 160002444.

The previous prime is 320065729. The next prime is 320065763. The reversal of 320065738 is 837560023.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1695 + ... + 25357.

It is an arithmetic number, because the mean of its divisors is an integer number (60023736).

Almost surely, 2^320065738 is an apocalyptic number.

320065738 is a deficient number, since it is larger than the sum of its proper divisors (160124150).

320065738 is a wasteful number, since it uses less digits than its factorization.

320065738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30428.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 320065738 is about 17890.3811586003. The cubic root of 320065738 is about 684.0372131299.

The spelling of 320065738 in words is "three hundred twenty million, sixty-five thousand, seven hundred thirty-eight".