421170 has 32 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 110400.

The previous prime is 421163. The next prime is 421177. The reversal of 421170 is 71124.

421170 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (421163) and next prime (421177).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421177) by changing a digit.

421170 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 15 ways as a sum of consecutive naturals, for example, 2961 + ... + 3099.

It is an arithmetic number, because the mean of its divisors is an integer number (32130).

2⁴²¹¹⁷⁰ is an apocalyptic number.

421170 is an abundant number, since it is smaller than the sum of its proper divisors (606990).

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

421170 is a wasteful number, since it uses less digits than its factorization.

421170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 421170 is about 648.9761166638. The cubic root of 421170 is about 74.9581989288.

Adding to 421170 its reverse (71124), we get a palindrome (492294).

The spelling of 421170 in words is "four hundred twenty-one thousand, one hundred seventy", and thus it is an iban number.