320045006 has 8 divisors (see below), whose sum is σ = 505334280. Its totient is φ = 151600248.

The previous prime is 320045003. The next prime is 320045017. The reversal of 320045006 is 600540023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320045003) 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, 4211081 + ... + 4211156.

It is an arithmetic number, because the mean of its divisors is an integer number (63166785).

Almost surely, 2^320045006 is an apocalyptic number.

320045006 is a deficient number, since it is larger than the sum of its proper divisors (185289274).

320045006 is a wasteful number, since it uses less digits than its factorization.

320045006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422258.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 320045006 is about 17889.8017317130. The cubic root of 320045006 is about 684.0224434914.

Adding to 320045006 its reverse (600540023), we get a palindrome (920585029).

The spelling of 320045006 in words is "three hundred twenty million, forty-five thousand, six".