320064 has 28 divisors (see below), whose sum is σ = 847344. Its totient is φ = 106624.

The previous prime is 320063. The next prime is 320081. The reversal of 320064 is 460023.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320064.

It is not an unprimeable number, because it can be changed into a prime (320063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642 + ... + 1025.

2³²⁰⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

320064 is an abundant number, since it is smaller than the sum of its proper divisors (527280).

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

320064 is a wasteful number, since it uses less digits than its factorization.

320064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1672 counting only the distinct ones).

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

The square root of 320064 is about 565.7419906636. The cubic root of 320064 is about 68.4035974990.

Adding to 320064 its reverse (460023), we get a palindrome (780087).

The spelling of 320064 in words is "three hundred twenty thousand, sixty-four".