478248818 has 8 divisors (see below), whose sum is σ = 718494300. Its totient is φ = 238750720.

The previous prime is 478248817. The next prime is 478248833. The reversal of 478248818 is 818842874.

It can be written as a sum of positive squares in 2 ways, for example, as 451860049 + 26388769 = 21257^2 + 5137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (478248817) 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, 185243 + ... + 187806.

Almost surely, 2^478248818 is an apocalyptic number.

478248818 is a deficient number, since it is larger than the sum of its proper divisors (240245482).

478248818 is a wasteful number, since it uses less digits than its factorization.

478248818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373692.

The product of its digits is 917504, while the sum is 50.

The square root of 478248818 is about 21868.9007039677. The cubic root of 478248818 is about 782.0201949246.

The spelling of 478248818 in words is "four hundred seventy-eight million, two hundred forty-eight thousand, eight hundred eighteen".