490687678 has 8 divisors (see below), whose sum is σ = 792649368. Its totient is φ = 226471224.

The previous prime is 490687667. The next prime is 490687693. The reversal of 490687678 is 876786094.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9436276 + ... + 9436327.

It is an arithmetic number, because the mean of its divisors is an integer number (99081171).

Almost surely, 2^490687678 is an apocalyptic number.

490687678 is a deficient number, since it is larger than the sum of its proper divisors (301961690).

490687678 is a wasteful number, since it uses less digits than its factorization.

490687678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18872618.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 490687678 is about 22151.4712378208. The cubic root of 490687678 is about 788.7421514804.

The spelling of 490687678 in words is "four hundred ninety million, six hundred eighty-seven thousand, six hundred seventy-eight".