It is a Jordan-Polya number, since it can be written as 6! ⋅ (5!)2 ⋅ 2!.
It is a tau number, because it is divible by the number of its divisors (240).
It is a zygodrome in base 3.
It is an unprimeable number.
Almost surely, 220736000 is an apocalyptic number.
20736000 is a gapful number since it is divisible by the number (20) 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 20736000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38648610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20736000 is an frugal number, since it uses more digits than its factorization.
20736000 is an evil number, because the sum of its binary digits is even.
The square root of 20736000 is about 4553.6798306425. The cubic root of 20736000 is about 274.7314182128.
Multiplying 20736000 by its sum of digits (18), we get a cube (373248000 = 7203).
Adding to 20736000 its reverse (63702), we get a palindrome (20799702).
The spelling of 20736000 in words is "twenty million, seven hundred thirty-six thousand".