478305869 has 8 divisors (see below), whose sum is σ = 481844160. Its totient is φ = 474775936.

The previous prime is 478305859. The next prime is 478305901. The reversal of 478305869 is 968503874.

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

It is a cyclic number.

It is not a de Polignac number, because 478305869 - 2²⁸ = 209870413 is a prime.

It is a super-2 number, since 2×478305869² = 457553008639690322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478305809) 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, 153602 + ... + 156684.

It is an arithmetic number, because the mean of its divisors is an integer number (60230520).

Almost surely, 2^478305869 is an apocalyptic number.

It is an amenable number.

478305869 is a deficient number, since it is larger than the sum of its proper divisors (3538291).

478305869 is a wasteful number, since it uses less digits than its factorization.

478305869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 478305869 is about 21870.2050516222. The cubic root of 478305869 is about 782.0512897986.

The spelling of 478305869 in words is "four hundred seventy-eight million, three hundred five thousand, eight hundred sixty-nine".