4918220 has 12 divisors (see below), whose sum is σ = 10328304. Its totient is φ = 1967280.

The previous prime is 4918187. The next prime is 4918259. The reversal of 4918220 is 228194.

It is a self number, because there is not a number n which added to its sum of digits gives 4918220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122936 + ... + 122975.

It is an arithmetic number, because the mean of its divisors is an integer number (860692).

Almost surely, 2^4918220 is an apocalyptic number.

It is an amenable number.

4918220 is an abundant number, since it is smaller than the sum of its proper divisors (5410084).

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

4918220 is a wasteful number, since it uses less digits than its factorization.

4918220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245920 (or 245918 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 4918220 is about 2217.7060219966. The cubic root of 4918220 is about 170.0601863018.

Subtracting from 4918220 its sum of digits (26), we obtain a palindrome (4918194).

The spelling of 4918220 in words is "four million, nine hundred eighteen thousand, two hundred twenty".