489836340 has 432 divisors, whose sum is σ = 1892217600. Its totient is φ = 101896704.

The previous prime is 489836339. The next prime is 489836341. The reversal of 489836340 is 43638984.

489836340 is a `hidden beast` number, since 4 + 8 + 9 + 8 + 3 + 634 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (489836339) and next prime (489836341).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489836341) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6200421 + ... + 6200499.

Almost surely, 2^489836340 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 489836340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (946108800).

489836340 is an abundant number, since it is smaller than the sum of its proper divisors (1402381260).

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

489836340 is a wasteful number, since it uses less digits than its factorization.

489836340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 489836340 is about 22132.2466098677. The cubic root of 489836340 is about 788.2857342853.

The spelling of 489836340 in words is "four hundred eighty-nine million, eight hundred thirty-six thousand, three hundred forty".