478445785 has 16 divisors (see below), whose sum is σ = 597007872. Its totient is φ = 367689600.

The previous prime is 478445771. The next prime is 478445791. The reversal of 478445785 is 587544874.

It is not a de Polignac number, because 478445785 - 2⁷ = 478445657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9970 + ... + 32500.

It is an arithmetic number, because the mean of its divisors is an integer number (37312992).

Almost surely, 2^478445785 is an apocalyptic number.

It is an amenable number.

478445785 is a deficient number, since it is larger than the sum of its proper divisors (118562087).

478445785 is a wasteful number, since it uses less digits than its factorization.

478445785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22704.

The product of its digits is 5017600, while the sum is 52.

The square root of 478445785 is about 21873.4035988915. The cubic root of 478445785 is about 782.1275386508.

The spelling of 478445785 in words is "four hundred seventy-eight million, four hundred forty-five thousand, seven hundred eighty-five".