489660780 has 192 divisors, whose sum is σ = 1688924160. Its totient is φ = 103493376.

The previous prime is 489660763. The next prime is 489660797. The reversal of 489660780 is 87066984.

It is an interprime number because it is at equal distance from previous prime (489660763) and next prime (489660797).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 342427 + ... + 343853.

It is an arithmetic number, because the mean of its divisors is an integer number (8796480).

Almost surely, 2^489660780 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 489660780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844462080).

489660780 is an abundant number, since it is smaller than the sum of its proper divisors (1199263380).

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

489660780 is a wasteful number, since it uses less digits than its factorization.

489660780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 489660780 is about 22128.2800958412. The cubic root of 489660780 is about 788.1915477384.

The spelling of 489660780 in words is "four hundred eighty-nine million, six hundred sixty thousand, seven hundred eighty".