478807618 has 16 divisors (see below), whose sum is σ = 774810360. Its totient is φ = 221069056.

The previous prime is 478807613. The next prime is 478807621. The reversal of 478807618 is 816708874.

It can be written as a sum of positive squares in 4 ways, for example, as 456121449 + 22686169 = 21357^2 + 4763^2 .

It is not an unprimeable number, because it can be changed into a prime (478807613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131053 + ... + 134656.

Almost surely, 2^478807618 is an apocalyptic number.

478807618 is a deficient number, since it is larger than the sum of its proper divisors (296002742).

478807618 is a wasteful number, since it uses less digits than its factorization.

478807618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265781.

The product of its (nonzero) digits is 602112, while the sum is 49.

The square root of 478807618 is about 21881.6731078773. The cubic root of 478807618 is about 782.3246548490.

The spelling of 478807618 in words is "four hundred seventy-eight million, eight hundred seven thousand, six hundred eighteen".