320220424 has 16 divisors (see below), whose sum is σ = 600678720. Its totient is φ = 160039440.

The previous prime is 320220419. The next prime is 320220427. The reversal of 320220424 is 424022023.

It is a super-2 number, since 2×320220424² = 205082239893479552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320220427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13789 + ... + 28819.

It is an arithmetic number, because the mean of its divisors is an integer number (37542420).

Almost surely, 2^320220424 is an apocalyptic number.

It is an amenable number.

320220424 is a deficient number, since it is larger than the sum of its proper divisors (280458296).

320220424 is a wasteful number, since it uses less digits than its factorization.

320220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700 (or 17696 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 320220424 is about 17894.7037974927. The cubic root of 320220424 is about 684.1473925154.

Adding to 320220424 its reverse (424022023), we get a palindrome (744242447).

The spelling of 320220424 in words is "three hundred twenty million, two hundred twenty thousand, four hundred twenty-four".