489905976 has 32 divisors (see below), whose sum is σ = 1399731840. Its totient is φ = 139973088.

The previous prime is 489905971. The next prime is 489905987. The reversal of 489905976 is 679509984.

489905976 = T₄₃₈ + T₄₃₉ + ... + T₁₄₄₅.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489905971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457886 + ... + 1458221.

It is an arithmetic number, because the mean of its divisors is an integer number (43741620).

Almost surely, 2^489905976 is an apocalyptic number.

It is an amenable number.

489905976 is an abundant number, since it is smaller than the sum of its proper divisors (909825864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489905976 is a wasteful number, since it uses less digits than its factorization.

489905976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916123 (or 2916119 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 57.

The square root of 489905976 is about 22133.8197336113. The cubic root of 489905976 is about 788.3230872131.

The spelling of 489905976 in words is "four hundred eighty-nine million, nine hundred five thousand, nine hundred seventy-six".