478341866 has 8 divisors (see below), whose sum is σ = 718415460. Its totient is φ = 238870048.

The previous prime is 478341859. The next prime is 478341901. The reversal of 478341866 is 668143874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 478340641 + 1225 = 21871^2 + 35^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 478341866.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148451 + ... + 151638.

Almost surely, 2^478341866 is an apocalyptic number.

478341866 is a deficient number, since it is larger than the sum of its proper divisors (240073594).

478341866 is a wasteful number, since it uses less digits than its factorization.

478341866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300888.

The product of its digits is 774144, while the sum is 47.

The square root of 478341866 is about 21871.0280051030. The cubic root of 478341866 is about 782.0709082031.

The spelling of 478341866 in words is "four hundred seventy-eight million, three hundred forty-one thousand, eight hundred sixty-six".