8421241444 has 96 divisors (see below), whose sum is σ = 19366905600. Its totient is φ = 3107919360.

The previous prime is 8421241429. The next prime is 8421241463. The reversal of 8421241444 is 4441421248.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464502 + ... + 482290.

It is an arithmetic number, because the mean of its divisors is an integer number (201738600).

Almost surely, 2^8421241444 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 8421241444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9683452800).

8421241444 is an abundant number, since it is smaller than the sum of its proper divisors (10945664156).

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

8421241444 is a wasteful number, since it uses less digits than its factorization.

8421241444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17893 (or 17891 counting only the distinct ones).

The product of its digits is 32768, while the sum is 34.

The square root of 8421241444 is about 91767.3223102865. The cubic root of 8421241444 is about 2034.5047416873.

The spelling of 8421241444 in words is "eight billion, four hundred twenty-one million, two hundred forty-one thousand, four hundred forty-four".