320643482 has 8 divisors (see below), whose sum is σ = 482255796. Its totient is φ = 159891552.

The previous prime is 320643473. The next prime is 320643497. The reversal of 320643482 is 284346023.

It can be written as a sum of positive squares in 2 ways, for example, as 318658201 + 1985281 = 17851^2 + 1409^2 .

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, 214163 + ... + 215654.

Almost surely, 2^320643482 is an apocalyptic number.

320643482 is a deficient number, since it is larger than the sum of its proper divisors (161612314).

320643482 is a wasteful number, since it uses less digits than its factorization.

320643482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430192.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 320643482 is about 17906.5206558952. The cubic root of 320643482 is about 684.4485461768.

The spelling of 320643482 in words is "three hundred twenty million, six hundred forty-three thousand, four hundred eighty-two".