421082 has 8 divisors (see below), whose sum is σ = 635796. Its totient is φ = 209152.

The previous prime is 421081. The next prime is 421093. The reversal of 421082 is 280124.

It can be written as a sum of positive squares in 2 ways, for example, as 410881 + 10201 = 641^2 + 101^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 421082.

It is not an unprimeable number, because it can be changed into a prime (421081) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 263 + ... + 954.

2⁴²¹⁰⁸² is an apocalyptic number.

421082 is a deficient number, since it is larger than the sum of its proper divisors (214714).

421082 is a wasteful number, since it uses less digits than its factorization.

421082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 421082 is about 648.9083140167. The cubic root of 421082 is about 74.9529779326.

The spelling of 421082 in words is "four hundred twenty-one thousand, eighty-two".