4478220 has 48 divisors (see below), whose sum is σ = 13933920. Its totient is φ = 1194048.

The previous prime is 4478203. The next prime is 4478231. The reversal of 4478220 is 228744.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3607 + ... + 4686.

It is an arithmetic number, because the mean of its divisors is an integer number (290290).

Almost surely, 2^4478220 is an apocalyptic number.

It is an amenable number.

4478220 is an abundant number, since it is smaller than the sum of its proper divisors (9455700).

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

4478220 is a wasteful number, since it uses less digits than its factorization.

4478220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311 (or 8303 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 4478220 is about 2116.1805216002. The cubic root of 4478220 is about 164.8295761006.

The spelling of 4478220 in words is "four million, four hundred seventy-eight thousand, two hundred twenty".