478562256 has 140 divisors (see below), whose sum is σ = 1408855140. Its totient is φ = 157386240.

The previous prime is 478562239. The next prime is 478562269. The reversal of 478562256 is 652265874.

It can be written as a sum of positive squares in 2 ways, for example, as 121352256 + 357210000 = 11016^2 + 18900^2 .

Its product of digits (806400) is a multiple of the sum of its prime factors (576).

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 27 ways as a sum of consecutive naturals, for example, 1037866 + ... + 1038326.

It is an arithmetic number, because the mean of its divisors is an integer number (10063251).

Almost surely, 2^478562256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478562256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704427570).

478562256 is an abundant number, since it is smaller than the sum of its proper divisors (930292884).

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

478562256 is an equidigital number, since it uses as much as digits as its factorization.

478562256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 555 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 478562256 is about 21876.0658254632. The cubic root of 478562256 is about 782.1909995405.

The spelling of 478562256 in words is "four hundred seventy-eight million, five hundred sixty-two thousand, two hundred fifty-six".