320912064 has 112 divisors (see below), whose sum is σ = 1029248640. Its totient is φ = 97240320.

The previous prime is 320912041. The next prime is 320912069. The reversal of 320912064 is 460219023.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (320912069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10567 + ... + 27449.

It is an arithmetic number, because the mean of its divisors is an integer number (9189720).

Almost surely, 2^320912064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320912064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514624320).

320912064 is an abundant number, since it is smaller than the sum of its proper divisors (708336576).

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

320912064 is a wasteful number, since it uses less digits than its factorization.

320912064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16915 (or 16899 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 320912064 is about 17914.0186446258. The cubic root of 320912064 is about 684.6395987176.

The spelling of 320912064 in words is "three hundred twenty million, nine hundred twelve thousand, sixty-four".