320373 has 6 divisors (see below), whose sum is σ = 462774. Its totient is φ = 213576.

The previous prime is 320339. The next prime is 320377. The reversal of 320373 is 373023.

It can be written as a sum of positive squares in only one way, i.e., 213444 + 106929 = 462^2 + 327^2 .

It is not a de Polignac number, because 320373 - 2¹⁸ = 58229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17790 + ... + 17807.

It is an arithmetic number, because the mean of its divisors is an integer number (77129).

2³²⁰³⁷³ is an apocalyptic number.

It is an amenable number.

320373 is a deficient number, since it is larger than the sum of its proper divisors (142401).

320373 is a wasteful number, since it uses less digits than its factorization.

320373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35603 (or 35600 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

The square root of 320373 is about 566.0150174686. The cubic root of 320373 is about 68.4256034241.

Adding to 320373 its reverse (373023), we get a palindrome (693396).

Subtracting 320373 from its reverse (373023), we obtain a triangular number (52650 = T₃₂₄).

The spelling of 320373 in words is "three hundred twenty thousand, three hundred seventy-three", and thus it is an iban number.