4402728 has 128 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 1244160.

The previous prime is 4402721. The next prime is 4402747. The reversal of 4402728 is 8272044.

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

It is not an unprimeable number, because it can be changed into a prime (4402721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40338 + ... + 40446.

It is an arithmetic number, because the mean of its divisors is an integer number (111375).

Almost surely, 2^4402728 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 4402728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7128000).

4402728 is an abundant number, since it is smaller than the sum of its proper divisors (9853272).

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

4402728 is a wasteful number, since it uses less digits than its factorization.

4402728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 142 counting only the distinct ones).

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

The square root of 4402728 is about 2098.2678570669. The cubic root of 4402728 is about 163.8981124029.

The spelling of 4402728 in words is "four million, four hundred two thousand, seven hundred twenty-eight".