320344307 has 8 divisors (see below), whose sum is σ = 322698240. Its totient is φ = 317997000.

The previous prime is 320344303. The next prime is 320344309. The reversal of 320344307 is 703443023.

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

It is a cyclic number.

It is not a de Polignac number, because 320344307 - 2² = 320344303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320344301) 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, 133238 + ... + 135620.

It is an arithmetic number, because the mean of its divisors is an integer number (40337280).

Almost surely, 2^320344307 is an apocalyptic number.

320344307 is a deficient number, since it is larger than the sum of its proper divisors (2353933).

320344307 is a wasteful number, since it uses less digits than its factorization.

320344307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313.

The product of its (nonzero) digits is 6048, while the sum is 26.

The square root of 320344307 is about 17898.1649059338. The cubic root of 320344307 is about 684.2356060269.

The spelling of 320344307 in words is "three hundred twenty million, three hundred forty-four thousand, three hundred seven".