489728142 has 48 divisors (see below), whose sum is σ = 1097665920. Its totient is φ = 157636800.

The previous prime is 489728131. The next prime is 489728153. The reversal of 489728142 is 241827984.

489728142 is a `hidden beast` number, since 489 + 7 + 28 + 142 = 666.

It is an interprime number because it is at equal distance from previous prime (489728131) and next prime (489728153).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457584 + ... + 458652.

It is an arithmetic number, because the mean of its divisors is an integer number (22868040).

Almost surely, 2^489728142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489728142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548832960).

489728142 is an abundant number, since it is smaller than the sum of its proper divisors (607937778).

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

489728142 is a wasteful number, since it uses less digits than its factorization.

489728142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1926 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 489728142 is about 22129.8021229292. The cubic root of 489728142 is about 788.2276895782.

The spelling of 489728142 in words is "four hundred eighty-nine million, seven hundred twenty-eight thousand, one hundred forty-two".