378189 has 40 divisors (see below), whose sum is σ = 696960. Its totient is φ = 199584.

The previous prime is 378179. The next prime is 378193. The reversal of 378189 is 981873.

It is not a de Polignac number, because 378189 - 2¹² = 374093 is a prime.

378189 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 378189.

It is not an unprimeable number, because it can be changed into a prime (378149) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13027 + ... + 13055.

It is an arithmetic number, because the mean of its divisors is an integer number (17424).

2³⁷⁸¹⁸⁹ is an apocalyptic number.

It is an amenable number.

378189 is a deficient number, since it is larger than the sum of its proper divisors (318771).

378189 is a wasteful number, since it uses less digits than its factorization.

378189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 62 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 378189 is about 614.9707310108. The cubic root of 378189 is about 72.3163166287.

Adding to 378189 its sum of digits (36), we get a square (378225 = 615²).

The spelling of 378189 in words is "three hundred seventy-eight thousand, one hundred eighty-nine".