320493943 has 16 divisors (see below), whose sum is σ = 400340736. Its totient is φ = 249258240.

The previous prime is 320493941. The next prime is 320493947. The reversal of 320493943 is 349394023.

It is not a de Polignac number, because 320493943 - 2¹ = 320493941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320493941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39655 + ... + 47047.

It is an arithmetic number, because the mean of its divisors is an integer number (25021296).

Almost surely, 2^320493943 is an apocalyptic number.

320493943 is a deficient number, since it is larger than the sum of its proper divisors (79846793).

320493943 is a wasteful number, since it uses less digits than its factorization.

320493943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 320493943 is about 17902.3446229817. The cubic root of 320493943 is about 684.3421271868.

The spelling of 320493943 in words is "three hundred twenty million, four hundred ninety-three thousand, nine hundred forty-three".