489540192 has 96 divisors (see below), whose sum is σ = 1327156992. Its totient is φ = 157883904.

The previous prime is 489540173. The next prime is 489540193. The reversal of 489540192 is 291045984.

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 (489540193) 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, 1004973 + ... + 1005459.

It is an arithmetic number, because the mean of its divisors is an integer number (13824552).

Almost surely, 2^489540192 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 489540192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663578496).

489540192 is an abundant number, since it is smaller than the sum of its proper divisors (837616800).

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

489540192 is a wasteful number, since it uses less digits than its factorization.

489540192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 489540192 is about 22125.5551794752. Note that the first 3 decimals coincide. The cubic root of 489540192 is about 788.1268401900.

The spelling of 489540192 in words is "four hundred eighty-nine million, five hundred forty thousand, one hundred ninety-two".