4503403728 has 120 divisors (see below), whose sum is σ = 13037856000. Its totient is φ = 1449584640.

The previous prime is 4503403721. The next prime is 4503403733. The reversal of 4503403728 is 8273043054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4503403692 and 4503403701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4503403721) 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, 3003523 + ... + 3005021.

It is an arithmetic number, because the mean of its divisors is an integer number (108648800).

Almost surely, 2^4503403728 is an apocalyptic number.

4503403728 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 4503403728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6518928000).

4503403728 is an abundant number, since it is smaller than the sum of its proper divisors (8534452272).

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

4503403728 is a wasteful number, since it uses less digits than its factorization.

4503403728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 4503403728 is about 67107.4044200787. The cubic root of 4503403728 is about 1651.3797736988.

The spelling of 4503403728 in words is "four billion, five hundred three million, four hundred three thousand, seven hundred twenty-eight".