478543816 has 16 divisors (see below), whose sum is σ = 899222940. Its totient is φ = 238751040.

The previous prime is 478543787. The next prime is 478543831. The reversal of 478543816 is 618345874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 421480900 + 57062916 = 20530^2 + 7554^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61191 + ... + 68566.

Almost surely, 2^478543816 is an apocalyptic number.

It is an amenable number.

478543816 is a deficient number, since it is larger than the sum of its proper divisors (420679124).

478543816 is a wasteful number, since it uses less digits than its factorization.

478543816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130224 (or 130220 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 478543816 is about 21875.6443562241. The cubic root of 478543816 is about 782.1809529289.

The spelling of 478543816 in words is "four hundred seventy-eight million, five hundred forty-three thousand, eight hundred sixteen".