489790140 has 96 divisors (see below), whose sum is σ = 1585059840. Its totient is φ = 110685696.

The previous prime is 489790139. The next prime is 489790159. The reversal of 489790140 is 41097984.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 489790092 and 489790101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30829 + ... + 43931.

It is an arithmetic number, because the mean of its divisors is an integer number (16511040).

Almost surely, 2^489790140 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 489790140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (792529920).

489790140 is an abundant number, since it is smaller than the sum of its proper divisors (1095269700).

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

489790140 is a wasteful number, since it uses less digits than its factorization.

489790140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211 (or 13209 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 489790140 is about 22131.2028593116. The cubic root of 489790140 is about 788.2609505340.

The spelling of 489790140 in words is "four hundred eighty-nine million, seven hundred ninety thousand, one hundred forty".