423346 has 16 divisors (see below), whose sum is σ = 792000. Its totient is φ = 164880.

The previous prime is 423341. The next prime is 423347. The reversal of 423346 is 643324.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (423341) by changing a digit.

423346 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (49500).

2⁴²³³⁴⁶ is an apocalyptic number.

423346 is a deficient number, since it is larger than the sum of its proper divisors (368654).

423346 is a wasteful number, since it uses less digits than its factorization.

423346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769.

The product of its digits is 1728, while the sum is 22.

The square root of 423346 is about 650.6504437868. The cubic root of 423346 is about 75.0870692505.

Subtracting from 423346 its sum of digits (22), we obtain a palindrome (423324).

The spelling of 423346 in words is "four hundred twenty-three thousand, three hundred forty-six".