320942839 has 8 divisors (see below), whose sum is σ = 368713728. Its totient is φ = 273652440.

The previous prime is 320942827. The next prime is 320942849. The reversal of 320942839 is 938249023.

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

It is a cyclic number.

It is not a de Polignac number, because 320942839 - 2¹¹ = 320940791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320942849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118687 + ... + 121360.

It is an arithmetic number, because the mean of its divisors is an integer number (46089216).

Almost surely, 2^320942839 is an apocalyptic number.

320942839 is a deficient number, since it is larger than the sum of its proper divisors (47770889).

320942839 is a wasteful number, since it uses less digits than its factorization.

320942839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240245.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 320942839 is about 17914.8775881947. The cubic root of 320942839 is about 684.6614833318.

The spelling of 320942839 in words is "three hundred twenty million, nine hundred forty-two thousand, eight hundred thirty-nine".