420846 has 8 divisors (see below), whose sum is σ = 841704. Its totient is φ = 140280.

The previous prime is 420811. The next prime is 420851. The reversal of 420846 is 648024.

420846 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

420846 is an admirable number.

It is a super-2 number, since 2×420846² = 354222711432, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35065 + ... + 35076.

It is an arithmetic number, because the mean of its divisors is an integer number (105213).

2⁴²⁰⁸⁴⁶ is an apocalyptic number.

420846 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.

420846 is a wasteful number, since it uses less digits than its factorization.

420846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70146.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 420846 is about 648.7264446591. The cubic root of 420846 is about 74.9389725777.

The spelling of 420846 in words is "four hundred twenty thousand, eight hundred forty-six".