489084121940 has 24 divisors (see below), whose sum is σ = 1028752173960. Its totient is φ = 195314502528.

The previous prime is 489084121901. The next prime is 489084121969. The reversal of 489084121940 is 49121480984.

It can be written as a sum of positive squares in 4 ways, for example, as 94400656 + 488989721284 = 9716^2 + 699278^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19934075 + ... + 19958594.

It is an arithmetic number, because the mean of its divisors is an integer number (42864673915).

Almost surely, 2^489084121940 is an apocalyptic number.

It is an amenable number.

489084121940 is an abundant number, since it is smaller than the sum of its proper divisors (539668052020).

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

489084121940 is a wasteful number, since it uses less digits than its factorization.

489084121940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39893291 (or 39893289 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 489084121940 in words is "four hundred eighty-nine billion, eighty-four million, one hundred twenty-one thousand, nine hundred forty".