320332109 has 8 divisors (see below), whose sum is σ = 338288832. Its totient is φ = 302711200.

The previous prime is 320332099. The next prime is 320332151. The reversal of 320332109 is 901233023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320332109 is a prime.

It is a super-2 number, since 2×320332109² = 205225320112775762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320332709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81992 + ... + 85809.

It is an arithmetic number, because the mean of its divisors is an integer number (42286104).

Almost surely, 2^320332109 is an apocalyptic number.

It is an amenable number.

320332109 is a deficient number, since it is larger than the sum of its proper divisors (17956723).

320332109 is a wasteful number, since it uses less digits than its factorization.

320332109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167907.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 320332109 is about 17897.8241414983. The cubic root of 320332109 is about 684.2269211924.

The spelling of 320332109 in words is "three hundred twenty million, three hundred thirty-two thousand, one hundred nine".