478247216 has 20 divisors (see below), whose sum is σ = 932293752. Its totient is φ = 237655296.

The previous prime is 478247191. The next prime is 478247219. The reversal of 478247216 is 612742874.

It is a happy number.

It is a super-2 number, since 2×478247216² = 457440799223501312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (478247219) 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, 89081 + ... + 94296.

Almost surely, 2^478247216 is an apocalyptic number.

It is an amenable number.

478247216 is a deficient number, since it is larger than the sum of its proper divisors (454046536).

478247216 is a wasteful number, since it uses less digits than its factorization.

478247216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183548 (or 183542 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 478247216 is about 21868.8640765816. The cubic root of 478247216 is about 782.0193217405.

The spelling of 478247216 in words is "four hundred seventy-eight million, two hundred forty-seven thousand, two hundred sixteen".