402082 has 8 divisors (see below), whose sum is σ = 608256. Its totient is φ = 199332.

The previous prime is 402071. The next prime is 402089. The reversal of 402082 is 280204.

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 (402089) by changing a digit.

402082 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (76032).

2⁴⁰²⁰⁸² is an apocalyptic number.

402082 is a deficient number, since it is larger than the sum of its proper divisors (206174).

402082 is a wasteful number, since it uses less digits than its factorization.

402082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 402082 is about 634.0993612992. The cubic root of 402082 is about 73.8082447097.

Adding to 402082 its reverse (280204), we get a palindrome (682286).

The spelling of 402082 in words is "four hundred two thousand, eighty-two".