Adding to 2478 its product of digits (448), we get a triangular number (2926 = T76).
It is a happy number.
2478 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.
It is a Curzon number.
It is a plaindrome in base 10, base 13 and base 16.
It is a nialpdrome in base 14.
It is a zygodrome in base 13.
It is a congruent number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2478 is a wasteful number, since it uses less digits than its factorization.
2478 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71.
The square root of 2478 is about 49.7795138586. The cubic root of 2478 is about 13.5321592700.
The spelling of 2478 in words is "two thousand, four hundred seventy-eight".