320345347 has 8 divisors (see below), whose sum is σ = 369664256. Its totient is φ = 271915272.

The previous prime is 320345321. The next prime is 320345359. The reversal of 320345347 is 743543023.

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-320345347 is a prime.

It is a super-2 number, since 2×320345347² = 205242282689100818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320345317) 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, 221433 + ... + 222874.

It is an arithmetic number, because the mean of its divisors is an integer number (46208032).

Almost surely, 2^320345347 is an apocalyptic number.

320345347 is a deficient number, since it is larger than the sum of its proper divisors (49318909).

320345347 is a wasteful number, since it uses less digits than its factorization.

320345347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444417.

The product of its (nonzero) digits is 30240, while the sum is 31.

The square root of 320345347 is about 17898.1939591681. The cubic root of 320345347 is about 684.2363464847.

The spelling of 320345347 in words is "three hundred twenty million, three hundred forty-five thousand, three hundred forty-seven".