478670220 has 144 divisors (see below), whose sum is σ = 1693473600. Its totient is φ = 109396224.

The previous prime is 478670219. The next prime is 478670237. The reversal of 478670220 is 22076874.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57864 + ... + 65616.

Almost surely, 2^478670220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478670220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846736800).

478670220 is an abundant number, since it is smaller than the sum of its proper divisors (1214803380).

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

478670220 is a wasteful number, since it uses less digits than its factorization.

478670220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789 (or 7770 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 478670220 is about 21878.5333146443. The cubic root of 478670220 is about 782.2498160743.

The spelling of 478670220 in words is "four hundred seventy-eight million, six hundred seventy thousand, two hundred twenty".