489790142 has 16 divisors (see below), whose sum is σ = 768780672. Its totient is φ = 233746560.

The previous prime is 489790139. The next prime is 489790159. The reversal of 489790142 is 241097984.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 489790093 and 489790102.

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 7 ways as a sum of consecutive naturals, for example, 49583 + ... + 58634.

It is an arithmetic number, because the mean of its divisors is an integer number (48048792).

Almost surely, 2^489790142 is an apocalyptic number.

489790142 is a deficient number, since it is larger than the sum of its proper divisors (278990530).

489790142 is a wasteful number, since it uses less digits than its factorization.

489790142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108323.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 489790142 is about 22131.2029044966. The cubic root of 489790142 is about 788.2609516070.

The spelling of 489790142 in words is "four hundred eighty-nine million, seven hundred ninety thousand, one hundred forty-two".