421030164 has 24 divisors (see below), whose sum is σ = 993444480. Its totient is φ = 138766144.

The previous prime is 421030147. The next prime is 421030187. The reversal of 421030164 is 461030124.

It is a self number, because there is not a number n which added to its sum of digits gives 421030164.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196044 + ... + 198179.

It is an arithmetic number, because the mean of its divisors is an integer number (41393520).

Almost surely, 2^421030164 is an apocalyptic number.

It is an amenable number.

421030164 is an abundant number, since it is smaller than the sum of its proper divisors (572414316).

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

421030164 is a wasteful number, since it uses less digits than its factorization.

421030164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394319 (or 394317 counting only the distinct ones).

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

The square root of 421030164 is about 20519.0195672210. The cubic root of 421030164 is about 749.4990218802.

Adding to 421030164 its reverse (461030124), we get a palindrome (882060288).

The spelling of 421030164 in words is "four hundred twenty-one million, thirty thousand, one hundred sixty-four".