421580160 has 256 divisors, whose sum is σ = 1543219200. Its totient is φ = 108656640.

The previous prime is 421580141. The next prime is 421580167. The reversal of 421580160 is 61085124.

421580160 is a `hidden beast` number, since 4 + 21 + 580 + 1 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421580167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 535287 + ... + 536073.

It is an arithmetic number, because the mean of its divisors is an integer number (6028200).

Almost surely, 2^421580160 is an apocalyptic number.

421580160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421580160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771609600).

421580160 is an abundant number, since it is smaller than the sum of its proper divisors (1121639040).

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

421580160 is a wasteful number, since it uses less digits than its factorization.

421580160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 421580160 is about 20532.4172955841. The cubic root of 421580160 is about 749.8252392814.

The spelling of 421580160 in words is "four hundred twenty-one million, five hundred eighty thousand, one hundred sixty".