489121554 has 16 divisors (see below), whose sum is σ = 1002103200. Its totient is φ = 159063840.

The previous prime is 489121547. The next prime is 489121561. The reversal of 489121554 is 455121984.

It is an interprime number because it is at equal distance from previous prime (489121547) and next prime (489121561).

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, 993904 + ... + 994395.

It is an arithmetic number, because the mean of its divisors is an integer number (62631450).

Almost surely, 2^489121554 is an apocalyptic number.

489121554 is an abundant number, since it is smaller than the sum of its proper divisors (512981646).

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

489121554 is a wasteful number, since it uses less digits than its factorization.

489121554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988345.

The product of its digits is 57600, while the sum is 39.

The square root of 489121554 is about 22116.0926476627. The cubic root of 489121554 is about 787.9021164286.

The spelling of 489121554 in words is "four hundred eighty-nine million, one hundred twenty-one thousand, five hundred fifty-four".