320463939 has 16 divisors (see below), whose sum is σ = 431185664. Its totient is φ = 211701600.

The previous prime is 320463911. The next prime is 320463943. The reversal of 320463939 is 939364023.

It is not a de Polignac number, because 320463939 - 2¹³ = 320455747 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320463897 and 320463906.

It is not an unprimeable number, because it can be changed into a prime (320463959) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 178842 + ... + 180624.

It is an arithmetic number, because the mean of its divisors is an integer number (26949104).

Almost surely, 2^320463939 is an apocalyptic number.

320463939 is a deficient number, since it is larger than the sum of its proper divisors (110721725).

320463939 is a wasteful number, since it uses less digits than its factorization.

320463939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 104976, while the sum is 39.

The square root of 320463939 is about 17901.5066125731. The cubic root of 320463939 is about 684.3207709413.

The spelling of 320463939 in words is "three hundred twenty million, four hundred sixty-three thousand, nine hundred thirty-nine".