320045080 has 48 divisors (see below), whose sum is σ = 728674560. Its totient is φ = 126504000.

The previous prime is 320045071. The next prime is 320045083. The reversal of 320045080 is 80540023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320045083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1274955 + ... + 1275205.

It is an arithmetic number, because the mean of its divisors is an integer number (15180720).

Almost surely, 2^320045080 is an apocalyptic number.

It is an amenable number.

320045080 is an abundant number, since it is smaller than the sum of its proper divisors (408629480).

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

320045080 is a wasteful number, since it uses less digits than its factorization.

320045080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 320045080 is about 17889.8037999303. The cubic root of 320045080 is about 684.0224962107.

The spelling of 320045080 in words is "three hundred twenty million, forty-five thousand, eighty".