489040221 has 16 divisors (see below), whose sum is σ = 708515840. Its totient is φ = 298902960.

The previous prime is 489040193. The next prime is 489040229. The reversal of 489040221 is 122040984.

It is not a de Polignac number, because 489040221 - 2⁹ = 489039709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489040229) 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, 136615 + ... + 140148.

It is an arithmetic number, because the mean of its divisors is an integer number (44282240).

Almost surely, 2^489040221 is an apocalyptic number.

It is an amenable number.

489040221 is a deficient number, since it is larger than the sum of its proper divisors (219475619).

489040221 is a wasteful number, since it uses less digits than its factorization.

489040221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276816.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 489040221 is about 22114.2537970423. The cubic root of 489040221 is about 787.8584422168.

The spelling of 489040221 in words is "four hundred eighty-nine million, forty thousand, two hundred twenty-one".