378365 has 8 divisors (see below), whose sum is σ = 489048. Its totient is φ = 279360.

The previous prime is 378361. The next prime is 378379. The reversal of 378365 is 563873.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 337561 = 202^2 + 581^2 .

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

It is not a de Polignac number, because 378365 - 2² = 378361 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 (378361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 2975.

It is an arithmetic number, because the mean of its divisors is an integer number (61131).

2³⁷⁸³⁶⁵ is an apocalyptic number.

It is an amenable number.

378365 is a deficient number, since it is larger than the sum of its proper divisors (110683).

378365 is a wasteful number, since it uses less digits than its factorization.

378365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5839.

The product of its digits is 15120, while the sum is 32.

The square root of 378365 is about 615.1138106074. The cubic root of 378365 is about 72.3275329763.

The spelling of 378365 in words is "three hundred seventy-eight thousand, three hundred sixty-five".