4578220 has 12 divisors (see below), whose sum is σ = 9614304. Its totient is φ = 1831280.

The previous prime is 4578199. The next prime is 4578227. The reversal of 4578220 is 228754.

It is a d-powerful number, because it can be written as 4⁹ + 5² + 7⁶ + 8⁴ + 2 + 2²² + 0 .

It is not an unprimeable number, because it can be changed into a prime (4578227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114436 + ... + 114475.

It is an arithmetic number, because the mean of its divisors is an integer number (801192).

Almost surely, 2^4578220 is an apocalyptic number.

It is an amenable number.

4578220 is an abundant number, since it is smaller than the sum of its proper divisors (5036084).

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

4578220 is a wasteful number, since it uses less digits than its factorization.

4578220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228920 (or 228918 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 4578220 is about 2139.6775457998. The cubic root of 4578220 is about 166.0474534098.

The spelling of 4578220 in words is "four million, five hundred seventy-eight thousand, two hundred twenty".