It is a congruent number.
It is an unprimeable number.
21612800 is an apocalyptic number.
1612800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1612800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3299764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1612800 is a wasteful number, since it uses less digits than its factorization.
1612800 is an evil number, because the sum of its binary digits is even.
The square root of 1612800 is about 1269.9606293110. The cubic root of 1612800 is about 117.2717767103.
Adding to 1612800 its reverse (82161), we get a palindrome (1694961).
The spelling of 1612800 in words is "one million, six hundred twelve thousand, eight hundred".