Adding to 40323 its reverse (32304), we get a palindrome (72627).
40323 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a de Polignac number, because none of the positive numbers 2k-40323 is a prime.
It is a D-number.
It is a Duffinian number.
40323 is a lucky number.
240323 is an apocalyptic number.
40323 is a wasteful number, since it uses less digits than its factorization.
40323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13444.
The square root of 40323 is about 200.8058764080. The cubic root of 40323 is about 34.2913259664.
The spelling of 40323 in words is "forty thousand, three hundred twenty-three", and thus it is an iban number.