426321 has 24 divisors (see below), whose sum is σ = 721344. Its totient is φ = 237600.

The previous prime is 426319. The next prime is 426331. The reversal of 426321 is 123624.

It is a happy number.

It is not a de Polignac number, because 426321 - 2¹ = 426319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426294 and 426303.

It is not an unprimeable number, because it can be changed into a prime (426301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171 + ... + 4271.

It is an arithmetic number, because the mean of its divisors is an integer number (30056).

2⁴²⁶³²¹ is an apocalyptic number.

It is an amenable number.

426321 is a deficient number, since it is larger than the sum of its proper divisors (295023).

426321 is a wasteful number, since it uses less digits than its factorization.

426321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 178 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 426321 is about 652.9326152062. The cubic root of 426321 is about 75.2625465186.

Adding to 426321 its reverse (123624), we get a palindrome (549945).

It can be divided in two parts, 426 and 321, that added together give a palindrome (747).

The spelling of 426321 in words is "four hundred twenty-six thousand, three hundred twenty-one".