4549728 has 48 divisors (see below), whose sum is σ = 12108096. Its totient is φ = 1495680.

The previous prime is 4549711. The next prime is 4549733. The reversal of 4549728 is 8279454.

4549728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7683 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (252252).

Almost surely, 2^4549728 is an apocalyptic number.

4549728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4549728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6054048).

4549728 is an abundant number, since it is smaller than the sum of its proper divisors (7558368).

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

4549728 is a wasteful number, since it uses less digits than its factorization.

4549728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 659 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 4549728 is about 2133.0091420339. The cubic root of 4549728 is about 165.7022775966.

Subtracting from 4549728 its sum of digits (39), we obtain a square (4549689 = 2133²).

It can be divided in two parts, 4 and 549728, that multiplied together give a palindrome (2198912).

The spelling of 4549728 in words is "four million, five hundred forty-nine thousand, seven hundred twenty-eight".