420946 has 8 divisors (see below), whose sum is σ = 658944. Its totient is φ = 201300.

The previous prime is 420941. The next prime is 420967. The reversal of 420946 is 649024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 420946.

It is not an unprimeable number, because it can be changed into a prime (420941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4530 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (82368).

2⁴²⁰⁹⁴⁶ is an apocalyptic number.

420946 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

420946 is a deficient number, since it is larger than the sum of its proper divisors (237998).

420946 is a wasteful number, since it uses less digits than its factorization.

420946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 420946 is about 648.8035141705. The cubic root of 420946 is about 74.9449076892.

The spelling of 420946 in words is "four hundred twenty thousand, nine hundred forty-six".