489342568 has 128 divisors (see below), whose sum is σ = 1161216000. Its totient is φ = 189976320.

The previous prime is 489342563. The next prime is 489342577. The reversal of 489342568 is 865243984.

It is a super-2 number, since 2×489342568² = 478912297713669248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (489342563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1021353 + ... + 1021831.

It is an arithmetic number, because the mean of its divisors is an integer number (9072000).

Almost surely, 2^489342568 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 489342568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580608000).

489342568 is an abundant number, since it is smaller than the sum of its proper divisors (671873432).

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

489342568 is a wasteful number, since it uses less digits than its factorization.

489342568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 571 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 489342568 is about 22121.0887616320. The cubic root of 489342568 is about 788.0207721254.

The spelling of 489342568 in words is "four hundred eighty-nine million, three hundred forty-two thousand, five hundred sixty-eight".