320478562 has 16 divisors (see below), whose sum is σ = 483411672. Its totient is φ = 159344640.

The previous prime is 320478553. The next prime is 320478569. The reversal of 320478562 is 265874023.

320478562 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 274929561 + 45549001 = 16581^2 + 6749^2 .

It is not an unprimeable number, because it can be changed into a prime (320478569) 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 7 ways as a sum of consecutive naturals, for example, 475858 + ... + 476530.

Almost surely, 2^320478562 is an apocalyptic number.

320478562 is a deficient number, since it is larger than the sum of its proper divisors (162933110).

320478562 is a wasteful number, since it uses less digits than its factorization.

320478562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 320478562 is about 17901.9150372244. The cubic root of 320478562 is about 684.3311794659.

The spelling of 320478562 in words is "three hundred twenty million, four hundred seventy-eight thousand, five hundred sixty-two".