478306678 has 8 divisors (see below), whose sum is σ = 719909568. Its totient is φ = 238336824.

The previous prime is 478306669. The next prime is 478306681. The reversal of 478306678 is 876603874.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407526 + ... + 408697.

It is an arithmetic number, because the mean of its divisors is an integer number (89988696).

Almost surely, 2^478306678 is an apocalyptic number.

478306678 is a deficient number, since it is larger than the sum of its proper divisors (241602890).

478306678 is a wasteful number, since it uses less digits than its factorization.

478306678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816518.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 478306678 is about 21870.2235470971. The cubic root of 478306678 is about 782.0517307153.

The spelling of 478306678 in words is "four hundred seventy-eight million, three hundred six thousand, six hundred seventy-eight".