423546 has 16 divisors (see below), whose sum is σ = 859584. Its totient is φ = 139104.

The previous prime is 423541. The next prime is 423547. The reversal of 423546 is 645324.

It is not an unprimeable number, because it can be changed into a prime (423541) 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, 46 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (53724).

2⁴²³⁵⁴⁶ is an apocalyptic number.

423546 is an abundant number, since it is smaller than the sum of its proper divisors (436038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423546 is a wasteful number, since it uses less digits than its factorization.

423546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045.

The product of its digits is 2880, while the sum is 24.

The square root of 423546 is about 650.8041179956. The cubic root of 423546 is about 75.0988917705.

Adding to 423546 its product of digits (2880), we get a triangular number (426426 = T₉₂₃).

It can be divided in two parts, 423 and 546, that added together give a palindrome (969).

The spelling of 423546 in words is "four hundred twenty-three thousand, five hundred forty-six".