378305 has 8 divisors (see below), whose sum is σ = 469800. Its totient is φ = 292096.

The previous prime is 378289. The next prime is 378317. The reversal of 378305 is 503873.

It can be written as a sum of positive squares in 4 ways, for example, as 38416 + 339889 = 196^2 + 583^2 .

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 378305 - 2⁴ = 378289 is a prime.

It is a super-2 number, since 2×378305² = 286229346050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 1449.

It is an arithmetic number, because the mean of its divisors is an integer number (58725).

2³⁷⁸³⁰⁵ is an apocalyptic number.

It is an amenable number.

378305 is a deficient number, since it is larger than the sum of its proper divisors (91495).

378305 is a wasteful number, since it uses less digits than its factorization.

378305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 378305 is about 615.0650372115. The cubic root of 378305 is about 72.3237096123.

The spelling of 378305 in words is "three hundred seventy-eight thousand, three hundred five".