489839742 has 48 divisors (see below), whose sum is σ = 1252073472. Its totient is φ = 135438480.

The previous prime is 489839731. The next prime is 489839759. The reversal of 489839742 is 247938984.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58798 + ... + 66609.

It is an arithmetic number, because the mean of its divisors is an integer number (26084864).

Almost surely, 2^489839742 is an apocalyptic number.

489839742 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

489839742 is an abundant number, since it is smaller than the sum of its proper divisors (762233730).

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

489839742 is a wasteful number, since it uses less digits than its factorization.

489839742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125453 (or 125450 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 489839742 is about 22132.3234659174. The cubic root of 489839742 is about 788.2875592090.

The spelling of 489839742 in words is "four hundred eighty-nine million, eight hundred thirty-nine thousand, seven hundred forty-two".