364 = 22 x 7 x 13.
364 has a unique representation as a sum of three squares: 364 = 22 + 62 + 182.
364 is the twelfth tetrahedral number.
364 is 111111 in base 3.
The first two digits of 364 are the product of the first two primes to the power of the first prime and the last two digits are the first prime to the product of the first two primes: 36 = (2 x 3)2 and 64 = 2(2 x 3).
Source: Prime Curios!