421543080 has 288 divisors, whose sum is σ = 1664582400. Its totient is φ = 92074752.

The previous prime is 421543051. The next prime is 421543091. The reversal of 421543080 is 80345124.

421543080 is a `hidden beast` number, since 42 + 1 + 543 + 0 + 80 = 666.

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 71 ways as a sum of consecutive naturals, for example, 405201 + ... + 406239.

It is an arithmetic number, because the mean of its divisors is an integer number (5779800).

Almost surely, 2^421543080 is an apocalyptic number.

421543080 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 421543080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832291200).

421543080 is an abundant number, since it is smaller than the sum of its proper divisors (1243039320).

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

421543080 is a wasteful number, since it uses less digits than its factorization.

421543080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 421543080 is about 20531.5143133671. The cubic root of 421543080 is about 749.8032550598.

The spelling of 421543080 in words is "four hundred twenty-one million, five hundred forty-three thousand, eighty".