It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
1578 is an admirable number.
It is a plaindrome in base 10.
1578 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
21578 is an apocalyptic number.
1578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1578 is a wasteful number, since it uses less digits than its factorization.
1578 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 268.
The square root of 1578 is about 39.7240481321. The cubic root of 1578 is about 11.6422163680.
The spelling of 1578 in words is "one thousand, five hundred seventy-eight".