320478933 has 16 divisors (see below), whose sum is σ = 435079296. Its totient is φ = 209778240.

The previous prime is 320478931. The next prime is 320478997. The reversal of 320478933 is 339874023.

It is not a de Polignac number, because 320478933 - 2¹ = 320478931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320478891 and 320478900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320478931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134791 + ... + 137147.

It is an arithmetic number, because the mean of its divisors is an integer number (27192456).

Almost surely, 2^320478933 is an apocalyptic number.

It is an amenable number.

320478933 is a deficient number, since it is larger than the sum of its proper divisors (114600363).

320478933 is a wasteful number, since it uses less digits than its factorization.

320478933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 320478933 is about 17901.9253992413. The cubic root of 320478933 is about 684.3314435364.

The spelling of 320478933 in words is "three hundred twenty million, four hundred seventy-eight thousand, nine hundred thirty-three".