Subtracting from 1974 its sum of digits (21), we obtain a triangular number (1953 = T62).
1974 is nontrivially palindromic in base 13.
1974 is an undulating number in base 13.
It is a plaindrome in base 8.
It is a nialpdrome in base 7 and base 14.
It is a self number, because there is not a number n which added to its sum of digits gives 1974.
It is a congruent number.
1974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 1974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1974 is a wasteful number, since it uses less digits than its factorization.
1974 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59.
The square root of 1974 is about 44.4297197830. The cubic root of 1974 is about 12.5443756113.
The spelling of 1974 in words is "one thousand, nine hundred seventy-four".