478320656 has 20 divisors (see below), whose sum is σ = 1010996304. Its totient is φ = 217418400.

The previous prime is 478320643. The next prime is 478320659. The reversal of 478320656 is 656023874.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (478320659) 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, 1358690 + ... + 1359041.

Almost surely, 2^478320656 is an apocalyptic number.

It is an amenable number.

478320656 is an abundant number, since it is smaller than the sum of its proper divisors (532675648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478320656 is a wasteful number, since it uses less digits than its factorization.

478320656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717750 (or 2717744 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 478320656 is about 21870.5431116833. The cubic root of 478320656 is about 782.0593488489.

The spelling of 478320656 in words is "four hundred seventy-eight million, three hundred twenty thousand, six hundred fifty-six".