40305 has 8 divisors (see below), whose sum is σ = 64512. Its totient is φ = 21488.

The previous prime is 40289. The next prime is 40343. The reversal of 40305 is 50304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40305 - 2⁴ = 40289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1329 + ... + 1358.

It is an arithmetic number, because the mean of its divisors is an integer number (8064).

2⁴⁰³⁰⁵ is an apocalyptic number.

It is an amenable number.

40305 is a deficient number, since it is larger than the sum of its proper divisors (24207).

40305 is a wasteful number, since it uses less digits than its factorization.

40305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 40305 is about 200.7610519996. The cubic root of 40305 is about 34.2862227107.

Adding to 40305 its reverse (50304), we get a palindrome (90609).

Subtracting 40305 from its reverse (50304), we obtain a palindrome (9999).

The spelling of 40305 in words is "forty thousand, three hundred five".