It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 378418.
It is an unprimeable number.
378418 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
378418 is a Friedman number, since it can be written as 878*431, using all its digits and the basic arithmetic operations.
2378418 is an apocalyptic number.
378418 is a wasteful number, since it uses less digits than its factorization.
378418 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 872.
The square root of 378418 is about 615.1568905572. The cubic root of 378418 is about 72.3309099450.
The spelling of 378418 in words is "three hundred seventy-eight thousand, four hundred eighteen".