421318164 has 24 divisors (see below), whose sum is σ = 983793888. Its totient is φ = 140336800.

The previous prime is 421318153. The next prime is 421318181. The reversal of 421318164 is 461813124.

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 7 ways as a sum of consecutive naturals, for example, 5314 + ... + 29510.

It is an arithmetic number, because the mean of its divisors is an integer number (40991412).

Almost surely, 2^421318164 is an apocalyptic number.

It is an amenable number.

421318164 is an abundant number, since it is smaller than the sum of its proper divisors (562475724).

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

421318164 is a wasteful number, since it uses less digits than its factorization.

421318164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25655 (or 25653 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 421318164 is about 20526.0362466795. The cubic root of 421318164 is about 749.6698778249.

The spelling of 421318164 in words is "four hundred twenty-one million, three hundred eighteen thousand, one hundred sixty-four".