489501285 has 64 divisors (see below), whose sum is σ = 974141952. Its totient is φ = 204374016.

The previous prime is 489501277. The next prime is 489501323. The reversal of 489501285 is 582105984.

It is a happy number.

It is not a de Polignac number, because 489501285 - 2³ = 489501277 is a prime.

It is a super-2 number, since 2×489501285² = 479223016033302450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130557 + ... + 134253.

It is an arithmetic number, because the mean of its divisors is an integer number (15220968).

Almost surely, 2^489501285 is an apocalyptic number.

It is an amenable number.

489501285 is a deficient number, since it is larger than the sum of its proper divisors (484640667).

489501285 is a wasteful number, since it uses less digits than its factorization.

489501285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 489501285 is about 22124.6759298300. The cubic root of 489501285 is about 788.1059604177.

The spelling of 489501285 in words is "four hundred eighty-nine million, five hundred one thousand, two hundred eighty-five".