423406 has 8 divisors (see below), whose sum is σ = 638280. Its totient is φ = 210648.

The previous prime is 423403. The next prime is 423413. The reversal of 423406 is 604324.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423403) by changing a digit.

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, 145 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (79785).

2⁴²³⁴⁰⁶ is an apocalyptic number.

423406 is a deficient number, since it is larger than the sum of its proper divisors (214874).

423406 is a wasteful number, since it uses less digits than its factorization.

423406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 423406 is about 650.6965498602. The cubic root of 423406 is about 75.0906163974.

The spelling of 423406 in words is "four hundred twenty-three thousand, four hundred six".