489826428 has 96 divisors (see below), whose sum is σ = 1410898944. Its totient is φ = 128798208.

The previous prime is 489826417. The next prime is 489826453. The reversal of 489826428 is 824628984.

It is a congruent number.

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, 673401 + ... + 674127.

It is an arithmetic number, because the mean of its divisors is an integer number (14696864).

Almost surely, 2^489826428 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 489826428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705449472).

489826428 is an abundant number, since it is smaller than the sum of its proper divisors (921072516).

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

489826428 is a wasteful number, since it uses less digits than its factorization.

489826428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1369 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 489826428 is about 22132.0226820777. The cubic root of 489826428 is about 788.2804171754.

The spelling of 489826428 in words is "four hundred eighty-nine million, eight hundred twenty-six thousand, four hundred twenty-eight".