423320 has 32 divisors (see below), whose sum is σ = 1004400. Its totient is φ = 160128.

The previous prime is 423307. The next prime is 423323. The reversal of 423320 is 23324.

It is a junction number, because it is equal to n+sod(n) for n = 423295 and 423304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423323) 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, 482 + ... + 1038.

2⁴²³³²⁰ is an apocalyptic number.

423320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502200).

423320 is an abundant number, since it is smaller than the sum of its proper divisors (581080).

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

423320 is a wasteful number, since it uses less digits than its factorization.

423320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 423320 is about 650.6304634737. The cubic root of 423320 is about 75.0855320495.

Adding to 423320 its reverse (23324), we get a palindrome (446644).

The spelling of 423320 in words is "four hundred twenty-three thousand, three hundred twenty", and thus it is an iban number.