320620716 has 108 divisors (see below), whose sum is σ = 885939600. Its totient is φ = 97718400.

The previous prime is 320620711. The next prime is 320620721. The reversal of 320620716 is 617026023.

It is a happy number.

320620716 is a `hidden beast` number, since 3 + 20 + 620 + 7 + 16 = 666.

320620716 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 (320620711) and next prime (320620721).

It is a self number, because there is not a number n which added to its sum of digits gives 320620716.

It is not an unprimeable number, because it can be changed into a prime (320620711) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 918510 + ... + 918858.

Almost surely, 2^320620716 is an apocalyptic number.

320620716 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320620716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442969800).

320620716 is an abundant number, since it is smaller than the sum of its proper divisors (565318884).

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

320620716 is a wasteful number, since it uses less digits than its factorization.

320620716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 320620716 is about 17905.8849543942. The cubic root of 320620716 is about 684.4323469553.

Adding to 320620716 its reverse (617026023), we get a palindrome (937646739).

The spelling of 320620716 in words is "three hundred twenty million, six hundred twenty thousand, seven hundred sixteen".