320420424 has 32 divisors (see below), whose sum is σ = 803304000. Its totient is φ = 106506432.

The previous prime is 320420417. The next prime is 320420431. The reversal of 320420424 is 424024023.

320420424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (320420417) and next prime (320420431).

It is a self number, because there is not a number n which added to its sum of digits gives 320420424.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9979 + ... + 27210.

It is an arithmetic number, because the mean of its divisors is an integer number (25103250).

Almost surely, 2^320420424 is an apocalyptic number.

It is an amenable number.

320420424 is an abundant number, since it is smaller than the sum of its proper divisors (482883576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320420424 is a wasteful number, since it uses less digits than its factorization.

320420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37557 (or 37553 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 320420424 is about 17900.2911708162. The cubic root of 320420424 is about 684.2897954683.

Adding to 320420424 its reverse (424024023), we get a palindrome (744444447).

The spelling of 320420424 in words is "three hundred twenty million, four hundred twenty thousand, four hundred twenty-four".