420086 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 198720.

The previous prime is 420073. The next prime is 420097. The reversal of 420086 is 680024.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420086.

It is an unprimeable number.

420086 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3800 + ... + 3908.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴²⁰⁰⁸⁶ is an apocalyptic number.

420086 is a deficient number, since it is larger than the sum of its proper divisors (245194).

420086 is a wasteful number, since it uses less digits than its factorization.

420086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 420086 is about 648.1404168851. The cubic root of 420086 is about 74.8938349759.

The spelling of 420086 in words is "four hundred twenty thousand, eighty-six".