421338 has 8 divisors (see below), whose sum is σ = 842688. Its totient is φ = 140444.

The previous prime is 421331. The next prime is 421339. The reversal of 421338 is 833124.

It is a happy number.

421338 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

421338 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421331) by changing a digit.

421338 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 3 ways as a sum of consecutive naturals, for example, 35106 + ... + 35117.

It is an arithmetic number, because the mean of its divisors is an integer number (105336).

2⁴²¹³³⁸ is an apocalyptic number.

421338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421338 is a wasteful number, since it uses less digits than its factorization.

421338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70228.

The product of its digits is 576, while the sum is 21.

The square root of 421338 is about 649.1055384142. The cubic root of 421338 is about 74.9681642662.

The spelling of 421338 in words is "four hundred twenty-one thousand, three hundred thirty-eight".