421852 has 12 divisors (see below), whose sum is σ = 742896. Its totient is φ = 209600.

The previous prime is 421847. The next prime is 421891. The reversal of 421852 is 258124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852 + ... + 1252.

It is an arithmetic number, because the mean of its divisors is an integer number (61908).

2⁴²¹⁸⁵² is an apocalyptic number.

It is an amenable number.

421852 is a deficient number, since it is larger than the sum of its proper divisors (321044).

421852 is a wasteful number, since it uses less digits than its factorization.

421852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 421852 is about 649.5013471887. The cubic root of 421852 is about 74.9986370123.

Adding to 421852 its reverse (258124), we get a palindrome (679976).

The spelling of 421852 in words is "four hundred twenty-one thousand, eight hundred fifty-two".