421188 has 12 divisors (see below), whose sum is σ = 982800. Its totient is φ = 140392.

The previous prime is 421181. The next prime is 421189. The reversal of 421188 is 881124.

421188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (421181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17538 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (81900).

2⁴²¹¹⁸⁸ is an apocalyptic number.

It is an amenable number.

421188 is an abundant number, since it is smaller than the sum of its proper divisors (561612).

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

421188 is a wasteful number, since it uses less digits than its factorization.

421188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35106 (or 35104 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

The square root of 421188 is about 648.9899845144. The cubic root of 421188 is about 74.9592667703.

The spelling of 421188 in words is "four hundred twenty-one thousand, one hundred eighty-eight".