489374784 has 196 divisors, whose sum is σ = 1544133564. Its totient is φ = 153280512.

The previous prime is 489374783. The next prime is 489374791. The reversal of 489374784 is 487473984.

It can be written as a sum of positive squares in 2 ways, for example, as 167961600 + 321413184 = 12960^2 + 17928^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 489374784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489374783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 792844 + ... + 793460.

Almost surely, 2^489374784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489374784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (772066782).

489374784 is an abundant number, since it is smaller than the sum of its proper divisors (1054758780).

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

489374784 is an equidigital number, since it uses as much as digits as its factorization.

489374784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 639 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 489374784 is about 22121.8169235712. The cubic root of 489374784 is about 788.0380649327.

The spelling of 489374784 in words is "four hundred eighty-nine million, three hundred seventy-four thousand, seven hundred eighty-four".