489872428408 has 64 divisors (see below), whose sum is σ = 1028359537920. Its totient is φ = 216844992000.

The previous prime is 489872428373. The next prime is 489872428439. The reversal of 489872428408 is 804824278984.

It is a super-2 number, since 2×489872428408² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489872428408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1083133 + ... + 1467283.

It is an arithmetic number, because the mean of its divisors is an integer number (16068117780).

Almost surely, 2^489872428408 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 489872428408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514179768960).

489872428408 is an abundant number, since it is smaller than the sum of its proper divisors (538487109512).

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

489872428408 is a wasteful number, since it uses less digits than its factorization.

489872428408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384548 (or 384544 counting only the distinct ones).

The product of its (nonzero) digits is 66060288, while the sum is 64.

The spelling of 489872428408 in words is "four hundred eighty-nine billion, eight hundred seventy-two million, four hundred twenty-eight thousand, four hundred eight".