405082 has 8 divisors (see below), whose sum is σ = 616896. Its totient is φ = 199452.

The previous prime is 405073. The next prime is 405089. The reversal of 405082 is 280504.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (405089) by changing a digit.

405082 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, 1378 + ... + 1645.

It is an arithmetic number, because the mean of its divisors is an integer number (77112).

2⁴⁰⁵⁰⁸² is an apocalyptic number.

405082 is a deficient number, since it is larger than the sum of its proper divisors (211814).

405082 is a wasteful number, since it uses less digits than its factorization.

405082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 405082 is about 636.4605250917. The cubic root of 405082 is about 73.9913552112.

Adding to 405082 its reverse (280504), we get a palindrome (685586).

The spelling of 405082 in words is "four hundred five thousand, eighty-two".