489970790438 has 8 divisors (see below), whose sum is σ = 734959902888. Its totient is φ = 244984156144.

The previous prime is 489970790431. The next prime is 489970790447. The reversal of 489970790438 is 834097079984.

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 (489970790431) 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, 2231 + ... + 989922.

It is an arithmetic number, because the mean of its divisors is an integer number (91869987861).

Almost surely, 2^489970790438 is an apocalyptic number.

489970790438 is a deficient number, since it is larger than the sum of its proper divisors (244989112450).

489970790438 is a wasteful number, since it uses less digits than its factorization.

489970790438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239078.

The product of its (nonzero) digits is 109734912, while the sum is 68.

The spelling of 489970790438 in words is "four hundred eighty-nine billion, nine hundred seventy million, seven hundred ninety thousand, four hundred thirty-eight".