It is a sphenic number, since it is the product of 3 distinct primes.
1626 is an admirable number.
It is a nude number because it is divisible by every one of its digits.
It is a Curzon number.
It is a plaindrome in base 11.
It is a nialpdrome in base 13 and base 14.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 1626.
21626 is an apocalyptic number.
1626 is the 26-th centered pentagonal number.
1626 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.
1626 is a wasteful number, since it uses less digits than its factorization.
1626 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 276.
The square root of 1626 is about 40.3236903073. The cubic root of 1626 is about 11.7590845694.
The spelling of 1626 in words is "one thousand, six hundred twenty-six".