420006 has 8 divisors (see below), whose sum is σ = 840024. Its totient is φ = 140000.

The previous prime is 420001. The next prime is 420029. The reversal of 420006 is 600024.

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

420006 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 419973 and 420000.

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 420006.

It is not an unprimeable number, because it can be changed into a prime (420001) by changing a digit.

420006 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, 34995 + ... + 35006.

It is an arithmetic number, because the mean of its divisors is an integer number (105003).

2⁴²⁰⁰⁰⁶ is an apocalyptic number.

420006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420006 is a wasteful number, since it uses less digits than its factorization.

420006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70006.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 420006 is about 648.0786989248. The cubic root of 420006 is about 74.8890804835.

The spelling of 420006 in words is "four hundred twenty thousand, six".