489923808 has 96 divisors (see below), whose sum is σ = 1440996480. Its totient is φ = 144437760.

The previous prime is 489923807. The next prime is 489923809. The reversal of 489923808 is 808329984.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (489923807) and next prime (489923809).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489923807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32803 + ... + 45341.

It is an arithmetic number, because the mean of its divisors is an integer number (15010380).

Almost surely, 2^489923808 is an apocalyptic number.

489923808 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 489923808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720498240).

489923808 is an abundant number, since it is smaller than the sum of its proper divisors (951072672).

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

489923808 is a wasteful number, since it uses less digits than its factorization.

489923808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600 (or 12592 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 489923808 is about 22134.2225524187. Note that the first 3 decimals coincide. The cubic root of 489923808 is about 788.3326517741.

The spelling of 489923808 in words is "four hundred eighty-nine million, nine hundred twenty-three thousand, eight hundred eight".