4389220 has 48 divisors (see below), whose sum is σ = 10233216. Its totient is φ = 1568000.

The previous prime is 4389193. The next prime is 4389221. The reversal of 4389220 is 229834.

4389220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4389221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15480 + ... + 15760.

It is an arithmetic number, because the mean of its divisors is an integer number (213192).

Almost surely, 2^4389220 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 4389220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5116608).

4389220 is an abundant number, since it is smaller than the sum of its proper divisors (5843996).

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

4389220 is a wasteful number, since it uses less digits than its factorization.

4389220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 4389220 is about 2095.0465388626. The cubic root of 4389220 is about 163.7303222086.

The spelling of 4389220 in words is "four million, three hundred eighty-nine thousand, two hundred twenty".