478986648 has 32 divisors (see below), whose sum is σ = 1368533760. Its totient is φ = 136853280.

The previous prime is 478986617. The next prime is 478986659. The reversal of 478986648 is 846689874.

It is a junction number, because it is equal to n+sod(n) for n = 478986591 and 478986600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425388 + ... + 1425723.

It is an arithmetic number, because the mean of its divisors is an integer number (42766680).

Almost surely, 2^478986648 is an apocalyptic number.

It is an amenable number.

478986648 is an abundant number, since it is smaller than the sum of its proper divisors (889547112).

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

478986648 is a wasteful number, since it uses less digits than its factorization.

478986648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851127 (or 2851123 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 60.

The square root of 478986648 is about 21885.7635918878. The cubic root of 478986648 is about 782.4221485151.

The spelling of 478986648 in words is "four hundred seventy-eight million, nine hundred eighty-six thousand, six hundred forty-eight".