320435313 has 32 divisors (see below), whose sum is σ = 489369600. Its totient is φ = 184718400.

The previous prime is 320435293. The next prime is 320435383. The reversal of 320435313 is 313534023.

It is a happy number.

It is not a de Polignac number, because 320435313 - 2⁹ = 320434801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320435383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57703 + ... + 63011.

It is an arithmetic number, because the mean of its divisors is an integer number (15292800).

Almost surely, 2^320435313 is an apocalyptic number.

320435313 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

320435313 is a deficient number, since it is larger than the sum of its proper divisors (168934287).

320435313 is a wasteful number, since it uses less digits than its factorization.

320435313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 320435313 is about 17900.7070530747. The cubic root of 320435313 is about 684.3003942859.

Adding to 320435313 its reverse (313534023), we get a palindrome (633969336).

The spelling of 320435313 in words is "three hundred twenty million, four hundred thirty-five thousand, three hundred thirteen".