489515904 has 96 divisors (see below), whose sum is σ = 1438763040. Its totient is φ = 159682560.

The previous prime is 489515903. The next prime is 489515941. The reversal of 489515904 is 409515984.

489515904 is a `hidden beast` number, since 4 + 8 + 9 + 51 + 590 + 4 = 666.

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

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 489515904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489515903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49624 + ... + 58664.

It is an arithmetic number, because the mean of its divisors is an integer number (14987115).

Almost surely, 2^489515904 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 489515904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719381520).

489515904 is an abundant number, since it is smaller than the sum of its proper divisors (949247136).

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

489515904 is a wasteful number, since it uses less digits than its factorization.

489515904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9108 (or 9093 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 489515904 is about 22125.0063050838. The cubic root of 489515904 is about 788.1138059581.

The spelling of 489515904 in words is "four hundred eighty-nine million, five hundred fifteen thousand, nine hundred four".