378018 has 12 divisors (see below), whose sum is σ = 819078. Its totient is φ = 126000.

The previous prime is 378011. The next prime is 378019. The reversal of 378018 is 810873.

378018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 356409 + 21609 = 597^2 + 147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 377982 and 378000.

It is not an unprimeable number, because it can be changed into a prime (378011) by changing a digit.

378018 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10483 + ... + 10518.

2³⁷⁸⁰¹⁸ is an apocalyptic number.

378018 is an abundant number, since it is smaller than the sum of its proper divisors (441060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378018 is a wasteful number, since it uses less digits than its factorization.

378018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21009 (or 21006 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 378018 is about 614.8316842844. The cubic root of 378018 is about 72.3054155938.

The spelling of 378018 in words is "three hundred seventy-eight thousand, eighteen".