320424013 has 8 divisors (see below), whose sum is σ = 394368128. Its totient is φ = 253522224.

The previous prime is 320424011. The next prime is 320424031. The reversal of 320424013 is 310424023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320424013 - 2¹ = 320424011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320424011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760481 + ... + 1760662.

It is an arithmetic number, because the mean of its divisors is an integer number (49296016).

Almost surely, 2^320424013 is an apocalyptic number.

It is an amenable number.

320424013 is a deficient number, since it is larger than the sum of its proper divisors (73944115).

320424013 is a wasteful number, since it uses less digits than its factorization.

320424013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521163.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 320424013 is about 17900.3914203014. The cubic root of 320424013 is about 684.2923503480.

Adding to 320424013 its reverse (310424023), we get a palindrome (630848036).

The spelling of 320424013 in words is "three hundred twenty million, four hundred twenty-four thousand, thirteen".