421844213224 has 96 divisors (see below), whose sum is σ = 965068404480. Its totient is φ = 172161230976.

The previous prime is 421844213213. The next prime is 421844213237. The reversal of 421844213224 is 422312448124.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372277 + ... + 991099.

It is an arithmetic number, because the mean of its divisors is an integer number (10052795880).

Almost surely, 2^421844213224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421844213224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482534202240).

421844213224 is an abundant number, since it is smaller than the sum of its proper divisors (543224191256).

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

421844213224 is a wasteful number, since it uses less digits than its factorization.

421844213224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618927 (or 618916 counting only the distinct ones).

The product of its digits is 98304, while the sum is 37.

The spelling of 421844213224 in words is "four hundred twenty-one billion, eight hundred forty-four million, two hundred thirteen thousand, two hundred twenty-four".