420933 has 8 divisors (see below), whose sum is σ = 564928. Its totient is φ = 278784.

The previous prime is 420929. The next prime is 420941. The reversal of 420933 is 339024.

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

It is not a de Polignac number, because 420933 - 2² = 420929 is a prime.

It is an Ulam number.

It is a Duffinian number.

420933 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216 + ... + 942.

It is an arithmetic number, because the mean of its divisors is an integer number (70616).

2⁴²⁰⁹³³ is an apocalyptic number.

It is an amenable number.

420933 is a deficient number, since it is larger than the sum of its proper divisors (143995).

420933 is a wasteful number, since it uses less digits than its factorization.

420933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 420933 is about 648.7934956517. The cubic root of 420933 is about 74.9441361779.

Adding to 420933 its reverse (339024), we get a palindrome (759957).

The spelling of 420933 in words is "four hundred twenty thousand, nine hundred thirty-three".