489508249 has 4 divisors (see below), whose sum is σ = 489692980. Its totient is φ = 489323520.

The previous prime is 489508247. The next prime is 489508273. The reversal of 489508249 is 942805984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46826649 + 442681600 = 6843^2 + 21040^2 .

It is a cyclic number.

It is not a de Polignac number, because 489508249 - 2¹ = 489508247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489508247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88332 + ... + 93709.

It is an arithmetic number, because the mean of its divisors is an integer number (122423245).

Almost surely, 2^489508249 is an apocalyptic number.

It is an amenable number.

489508249 is a deficient number, since it is larger than the sum of its proper divisors (184731).

489508249 is a wasteful number, since it uses less digits than its factorization.

489508249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184730.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 489508249 is about 22124.8333101065. The cubic root of 489508249 is about 788.1096977888.

The spelling of 489508249 in words is "four hundred eighty-nine million, five hundred eight thousand, two hundred forty-nine".