40315 has 8 divisors (see below), whose sum is σ = 52848. Its totient is φ = 29280.

The previous prime is 40289. The next prime is 40343. The reversal of 40315 is 51304.

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

It is not a de Polignac number, because 40315 - 2⁵ = 40283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40295 and 40304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 421.

It is an arithmetic number, because the mean of its divisors is an integer number (6606).

2⁴⁰³¹⁵ is an apocalyptic number.

40315 is a deficient number, since it is larger than the sum of its proper divisors (12533).

40315 is a wasteful number, since it uses less digits than its factorization.

40315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 40315 is about 200.7859556842. The cubic root of 40315 is about 34.2890580403.

Multiplying 40315 by its product of nonzero digits (60), we get a triangular number (2418900 = T₂₁₉₉).

Adding to 40315 its reverse (51304), we get a palindrome (91619).

The spelling of 40315 in words is "forty thousand, three hundred fifteen".