489221434884 has 144 divisors (see below), whose sum is σ = 1432456679808. Its totient is φ = 128806659072.

The previous prime is 489221434873. The next prime is 489221434909. The reversal of 489221434884 is 488434122984.

It is a super-2 number, since 2×489221434884² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4478929 + ... + 4586855.

It is an arithmetic number, because the mean of its divisors is an integer number (9947615832).

Almost surely, 2^489221434884 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 489221434884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716228339904).

489221434884 is an abundant number, since it is smaller than the sum of its proper divisors (943235244924).

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

489221434884 is a wasteful number, since it uses less digits than its factorization.

489221434884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108554 (or 108545 counting only the distinct ones).

The product of its digits is 14155776, while the sum is 57.

The spelling of 489221434884 in words is "four hundred eighty-nine billion, two hundred twenty-one million, four hundred thirty-four thousand, eight hundred eighty-four".