478212808 has 16 divisors (see below), whose sum is σ = 896881500. Its totient is φ = 239044416.

The previous prime is 478212751. The next prime is 478212809. The reversal of 478212808 is 808212874.

It can be written as a sum of positive squares in 2 ways, for example, as 317481124 + 160731684 = 17818^2 + 12678^2 .

It is not an unprimeable number, because it can be changed into a prime (478212809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53698 + ... + 61966.

Almost surely, 2^478212808 is an apocalyptic number.

It is an amenable number.

478212808 is a deficient number, since it is larger than the sum of its proper divisors (418668692).

478212808 is a wasteful number, since it uses less digits than its factorization.

478212808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15504 (or 15500 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 478212808 is about 21868.0773731940. The cubic root of 478212808 is about 782.0005668893. Note that the first 3 decimals are identical.

The spelling of 478212808 in words is "four hundred seventy-eight million, two hundred twelve thousand, eight hundred eight".