4428018 has 48 divisors (see below), whose sum is σ = 11097216. Its totient is φ = 1249920.

The previous prime is 4428013. The next prime is 4428023. The reversal of 4428018 is 8108244.

It is an interprime number because it is at equal distance from previous prime (4428013) and next prime (4428023).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4427982 and 4428000.

It is not an unprimeable number, because it can be changed into a prime (4428013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14083 + ... + 14393.

It is an arithmetic number, because the mean of its divisors is an integer number (231192).

Almost surely, 2^4428018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4428018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5548608).

4428018 is an abundant number, since it is smaller than the sum of its proper divisors (6669198).

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

4428018 is a wasteful number, since it uses less digits than its factorization.

4428018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 4428018 is about 2104.2856270003. The cubic root of 4428018 is about 164.2113327519.

The spelling of 4428018 in words is "four million, four hundred twenty-eight thousand, eighteen".