320378 has 8 divisors (see below), whose sum is σ = 505920. Its totient is φ = 151740.

The previous prime is 320377. The next prime is 320387. The reversal of 320378 is 873023.

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

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 3 ways as a sum of consecutive naturals, for example, 4178 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (63240).

2³²⁰³⁷⁸ is an apocalyptic number.

320378 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

320378 is a deficient number, since it is larger than the sum of its proper divisors (185542).

320378 is a wasteful number, since it uses less digits than its factorization.

320378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 320378 is about 566.0194342953. The cubic root of 320378 is about 68.4259593907.

The spelling of 320378 in words is "three hundred twenty thousand, three hundred seventy-eight".