489281290 has 16 divisors (see below), whose sum is σ = 902187720. Its totient is φ = 190938880.

The previous prime is 489281279. The next prime is 489281297. The reversal of 489281290 is 92182984.

It can be written as a sum of positive squares in 4 ways, for example, as 217592001 + 271689289 = 14751^2 + 16483^2 .

It is not an unprimeable number, because it can be changed into a prime (489281297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596275 + ... + 597094.

Almost surely, 2^489281290 is an apocalyptic number.

489281290 is a deficient number, since it is larger than the sum of its proper divisors (412906430).

489281290 is a wasteful number, since it uses less digits than its factorization.

489281290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193417.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 489281290 is about 22119.7036598595. The cubic root of 489281290 is about 787.9878774106.

The spelling of 489281290 in words is "four hundred eighty-nine million, two hundred eighty-one thousand, two hundred ninety".