478217016 has 24 divisors (see below), whose sum is σ = 1295171280. Its totient is φ = 159405648.

The previous prime is 478216993. The next prime is 478217029. The reversal of 478217016 is 610712874.

478217016 is a `hidden beast` number, since 478 + 2 + 170 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3320880 + ... + 3321023.

It is an arithmetic number, because the mean of its divisors is an integer number (53965470).

Almost surely, 2^478217016 is an apocalyptic number.

It is an amenable number.

478217016 is an abundant number, since it is smaller than the sum of its proper divisors (816954264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478217016 is a wasteful number, since it uses less digits than its factorization.

478217016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6641915 (or 6641908 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 478217016 is about 21868.1735862874. The cubic root of 478217016 is about 782.0028606023.

The spelling of 478217016 in words is "four hundred seventy-eight million, two hundred seventeen thousand, sixteen".