421326 has 24 divisors (see below), whose sum is σ = 926640. Its totient is φ = 138336.

The previous prime is 421313. The next prime is 421331. The reversal of 421326 is 623124.

It is a happy number.

421326 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 421299 and 421308.

It is a congruent number.

It is an unprimeable number.

421326 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1471 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (38610).

2⁴²¹³²⁶ is an apocalyptic number.

421326 is an abundant number, since it is smaller than the sum of its proper divisors (505314).

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

421326 is a wasteful number, since it uses less digits than its factorization.

421326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 357 counting only the distinct ones).

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

The square root of 421326 is about 649.0962948592. The cubic root of 421326 is about 74.9674525442.

It can be divided in two parts, 421 and 326, that added together give a palindrome (747).

The spelling of 421326 in words is "four hundred twenty-one thousand, three hundred twenty-six".