489722688 has 168 divisors, whose sum is σ = 1727817728. Its totient is φ = 129143808.

The previous prime is 489722687. The next prime is 489722729. The reversal of 489722688 is 886227984.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×489722688² = 479656622283890688, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489722687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47745 + ... + 57087.

Almost surely, 2^489722688 is an apocalyptic number.

489722688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489722688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863908864).

489722688 is an abundant number, since it is smaller than the sum of its proper divisors (1238095040).

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

489722688 is a wasteful number, since it uses less digits than its factorization.

489722688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9381 (or 9368 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 489722688 is about 22129.6788950947. The cubic root of 489722688 is about 788.2247634584.

The spelling of 489722688 in words is "four hundred eighty-nine million, seven hundred twenty-two thousand, six hundred eighty-eight".