489557842 has 8 divisors (see below), whose sum is σ = 734506416. Its totient is φ = 244722372.

The previous prime is 489557839. The next prime is 489557843. The reversal of 489557842 is 248755984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 489557842.

It is not an unprimeable number, because it can be changed into a prime (489557843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16468 + ... + 35359.

It is an arithmetic number, because the mean of its divisors is an integer number (91813302).

Almost surely, 2^489557842 is an apocalyptic number.

489557842 is a deficient number, since it is larger than the sum of its proper divisors (244948574).

489557842 is a wasteful number, since it uses less digits than its factorization.

489557842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56552.

The product of its digits is 3225600, while the sum is 52.

The square root of 489557842 is about 22125.9540359280. The cubic root of 489557842 is about 788.1363118479.

The spelling of 489557842 in words is "four hundred eighty-nine million, five hundred fifty-seven thousand, eight hundred forty-two".