489971580 has 72 divisors (see below), whose sum is σ = 1595917008. Its totient is φ = 111992832.

The previous prime is 489971567. The next prime is 489971621. The reversal of 489971580 is 85179984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80389 + ... + 86268.

It is an arithmetic number, because the mean of its divisors is an integer number (22165514).

Almost surely, 2^489971580 is an apocalyptic number.

It is an amenable number.

489971580 is an abundant number, since it is smaller than the sum of its proper divisors (1105945428).

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

489971580 is a wasteful number, since it uses less digits than its factorization.

489971580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166683 (or 166674 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 489971580 is about 22135.3016695052. The cubic root of 489971580 is about 788.3582741279.

The spelling of 489971580 in words is "four hundred eighty-nine million, nine hundred seventy-one thousand, five hundred eighty".