489985078 has 8 divisors (see below), whose sum is σ = 801793800. Its totient is φ = 222720480.

The previous prime is 489985057. The next prime is 489985079. The reversal of 489985078 is 870589984.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489985079) 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, 11136003 + ... + 11136046.

It is an arithmetic number, because the mean of its divisors is an integer number (100224225).

Almost surely, 2^489985078 is an apocalyptic number.

489985078 is a deficient number, since it is larger than the sum of its proper divisors (311808722).

489985078 is a wasteful number, since it uses less digits than its factorization.

489985078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22272062.

The product of its (nonzero) digits is 5806080, while the sum is 58.

The square root of 489985078 is about 22135.6065649894. The cubic root of 489985078 is about 788.3655134336.

The spelling of 489985078 in words is "four hundred eighty-nine million, nine hundred eighty-five thousand, seventy-eight".