489915000 has 320 divisors, whose sum is σ = 1799424000. Its totient is φ = 123120000.

The previous prime is 489914989. The next prime is 489915001. The reversal of 489915000 is 519984.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489915001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2564905 + ... + 2565095.

It is an arithmetic number, because the mean of its divisors is an integer number (5623200).

Almost surely, 2^489915000 is an apocalyptic number.

489915000 is a gapful number since it is divisible by the number (40) 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 489915000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899712000).

489915000 is an abundant number, since it is smaller than the sum of its proper divisors (1309509000).

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

489915000 is a wasteful number, since it uses less digits than its factorization.

489915000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 489915000 is about 22134.0235836144. The cubic root of 489915000 is about 788.3279274506.

The spelling of 489915000 in words is "four hundred eighty-nine million, nine hundred fifteen thousand".