4878220 has 12 divisors (see below), whose sum is σ = 10244304. Its totient is φ = 1951280.

The previous prime is 4878217. The next prime is 4878233. The reversal of 4878220 is 228784.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121936 + ... + 121975.

It is an arithmetic number, because the mean of its divisors is an integer number (853692).

Almost surely, 2^4878220 is an apocalyptic number.

It is an amenable number.

4878220 is an abundant number, since it is smaller than the sum of its proper divisors (5366084).

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

4878220 is a wasteful number, since it uses less digits than its factorization.

4878220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243920 (or 243918 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 4878220 is about 2208.6692826225. The cubic root of 4878220 is about 169.5978962448.

The spelling of 4878220 in words is "four million, eight hundred seventy-eight thousand, two hundred twenty".