320300421 has 48 divisors (see below), whose sum is σ = 511019136. Its totient is φ = 174763008.

The previous prime is 320300419. The next prime is 320300429. The reversal of 320300421 is 124003023.

It is not a de Polignac number, because 320300421 - 2¹ = 320300419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320300421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320300429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2834461 + ... + 2834573.

It is an arithmetic number, because the mean of its divisors is an integer number (10646232).

Almost surely, 2^320300421 is an apocalyptic number.

It is an amenable number.

320300421 is a deficient number, since it is larger than the sum of its proper divisors (190718715).

320300421 is a wasteful number, since it uses less digits than its factorization.

320300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320300421 is about 17896.9388723323. The cubic root of 320300421 is about 684.2043586737.

Adding to 320300421 its reverse (124003023), we get a palindrome (444303444).

The spelling of 320300421 in words is "three hundred twenty million, three hundred thousand, four hundred twenty-one".