378243 has 8 divisors (see below), whose sum is σ = 560400. Its totient is φ = 252144.

The previous prime is 378241. The next prime is 378253. The reversal of 378243 is 342873.

It is not a de Polignac number, because 378243 - 2¹ = 378241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14009 = 378243 / (3 + 7 + 8 + 2 + 4 + 3).

It is not an unprimeable number, because it can be changed into a prime (378241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6978 + ... + 7031.

It is an arithmetic number, because the mean of its divisors is an integer number (70050).

2³⁷⁸²⁴³ is an apocalyptic number.

378243 is a deficient number, since it is larger than the sum of its proper divisors (182157).

378243 is a wasteful number, since it uses less digits than its factorization.

378243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14018 (or 14012 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 378243 is about 615.0146339722. The cubic root of 378243 is about 72.3197583780.

The spelling of 378243 in words is "three hundred seventy-eight thousand, two hundred forty-three".