421822080 has 320 divisors, whose sum is σ = 1540281600. Its totient is φ = 109983744.

The previous prime is 421822061. The next prime is 421822087. The reversal of 421822080 is 80228124.

It is a tau number, because it is divible by the number of its divisors (320).

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

It is not an unprimeable number, because it can be changed into a prime (421822087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4095309 + ... + 4095411.

It is an arithmetic number, because the mean of its divisors is an integer number (4813380).

Almost surely, 2^421822080 is an apocalyptic number.

421822080 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 421822080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770140800).

421822080 is an abundant number, since it is smaller than the sum of its proper divisors (1118459520).

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

421822080 is a wasteful number, since it uses less digits than its factorization.

421822080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 421822080 is about 20538.3076225866. The cubic root of 421822080 is about 749.9686386886.

The spelling of 421822080 in words is "four hundred twenty-one million, eight hundred twenty-two thousand, eighty".