478216 has 24 divisors (see below), whose sum is σ = 945630. Its totient is φ = 226688.

The previous prime is 478213. The next prime is 478241. The reversal of 478216 is 612874.

It can be written as a sum of positive squares in only one way, i.e., 476100 + 2116 = 690^2 + 46^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4176 + ... + 4288.

2⁴⁷⁸²¹⁶ is an apocalyptic number.

478216 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

478216 is a deficient number, since it is larger than the sum of its proper divisors (467414).

478216 is a wasteful number, since it uses less digits than its factorization.

478216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 138 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 478216 is about 691.5316334052. The cubic root of 478216 is about 78.2002306798.

The spelling of 478216 in words is "four hundred seventy-eight thousand, two hundred sixteen".