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40323 = 313441

40323 has 4 divisors (see below), whose sum is σ = 53768. Its totient is φ = 26880.

The previous prime is 40289. The next prime is 40343. The reversal of 40323 is 32304.

Adding to 40323 its reverse (32304), we get a palindrome (72627).

It can be divided in two parts, 40 and 323, that added together give a palindrome (363).

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.

It is a junction number, because it is equal to n+sod(n) for n = 40299 and 40308.

It is not an unprimeable number, because it can be changed into a prime (40343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6718 + ... + 6723.

It is an arithmetic number, because the mean of its divisors is an integer number (13442).

240323 is an apocalyptic number.

40323 is a deficient number, since it is larger than the sum of its proper divisors (13445).

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 product of its (nonzero) digits is 72, while the sum is 12.

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.

Divisors: 1 3 13441 40323