423756 has 36 divisors (see below), whose sum is σ = 1092000. Its totient is φ = 138528.

The previous prime is 423751. The next prime is 423763. The reversal of 423756 is 657324.

It is a happy number.

423756 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423756.

It is not an unprimeable number, because it can be changed into a prime (423751) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2770 + ... + 2918.

2⁴²³⁷⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546000).

423756 is an abundant number, since it is smaller than the sum of its proper divisors (668244).

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

423756 is a wasteful number, since it uses less digits than its factorization.

423756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 233 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 423756 is about 650.9654368705. The cubic root of 423756 is about 75.1113014116. Note that the first 3 decimals are identical.

The spelling of 423756 in words is "four hundred twenty-three thousand, seven hundred fifty-six".