489841064 has 8 divisors (see below), whose sum is σ = 918452010. Its totient is φ = 244920528.

The previous prime is 489841057. The next prime is 489841067. The reversal of 489841064 is 460148984.

489841064 = 3171² + 3172² + ... + 3218².

It can be written as a sum of positive squares in only one way, i.e., 409738564 + 80102500 = 20242^2 + 8950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (489841067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30615059 + ... + 30615074.

Almost surely, 2^489841064 is an apocalyptic number.

It is an amenable number.

489841064 is a deficient number, since it is larger than the sum of its proper divisors (428610946).

489841064 is a wasteful number, since it uses less digits than its factorization.

489841064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61230139 (or 61230135 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 489841064 is about 22132.3533317178. The cubic root of 489841064 is about 788.2882683628.

The spelling of 489841064 in words is "four hundred eighty-nine million, eight hundred forty-one thousand, sixty-four".