A = int(input())
N = 2 * A
import sys
if A == 3:
    print('NO')
    exit()
i = 2
while i * i <= N:
    if N % i == 0:
        j = N // i
        if i % 2 != j % 2:
           if i >= 3 or j >= 3:
               print('YES')
               exit()
    i += 1
print('NO')