405316 has 12 divisors (see below), whose sum is σ = 716688. Its totient is φ = 200552.

The previous prime is 405299. The next prime is 405323. The reversal of 405316 is 613504.

It is a junction number, because it is equal to n+sod(n) for n = 405293 and 405302.

It is an unprimeable number.

405316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46 + ... + 901.

It is an arithmetic number, because the mean of its divisors is an integer number (59724).

2⁴⁰⁵³¹⁶ is an apocalyptic number.

It is an amenable number.

405316 is a deficient number, since it is larger than the sum of its proper divisors (311372).

405316 is a wasteful number, since it uses less digits than its factorization.

405316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 405316 is about 636.6443277058. The cubic root of 405316 is about 74.0055997710.

It can be divided in two parts, 40 and 5316, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 405316 in words is "four hundred five thousand, three hundred sixteen".