478972688 has 30 divisors (see below), whose sum is σ = 983339406. Its totient is φ = 225229056.

The previous prime is 478972643. The next prime is 478972693. The reversal of 478972688 is 886279874.

It can be written as a sum of positive squares in only one way, i.e., 450797824 + 28174864 = 21232^2 + 5308^2 .

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 5 ways as a sum of consecutive naturals, for example, 360281 + ... + 361607.

Almost surely, 2^478972688 is an apocalyptic number.

It is an amenable number.

478972688 is an abundant number, since it is smaller than the sum of its proper divisors (504366718).

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

478972688 is an equidigital number, since it uses as much as digits as its factorization.

478972688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 1346 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 59.

The square root of 478972688 is about 21885.4446607785. Note that the first 3 decimals coincide. The cubic root of 478972688 is about 782.4145472459.

It can be divided in two parts, 4789 and 72688, that added together give a palindrome (77477).

The spelling of 478972688 in words is "four hundred seventy-eight million, nine hundred seventy-two thousand, six hundred eighty-eight".