478844513 has 24 divisors (see below), whose sum is σ = 567090720. Its totient is φ = 403085760.

The previous prime is 478844501. The next prime is 478844537. The reversal of 478844513 is 315448874.

It is not a de Polignac number, because 478844513 - 2⁸ = 478844257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (478844563) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1142618 + ... + 1143036.

It is an arithmetic number, because the mean of its divisors is an integer number (23628780).

Almost surely, 2^478844513 is an apocalyptic number.

It is an amenable number.

478844513 is a deficient number, since it is larger than the sum of its proper divisors (88246207).

478844513 is a wasteful number, since it uses less digits than its factorization.

478844513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797 (or 790 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 478844513 is about 21882.5161487430. The cubic root of 478844513 is about 782.3447486025.

The spelling of 478844513 in words is "four hundred seventy-eight million, eight hundred forty-four thousand, five hundred thirteen".