4450728 has 32 divisors (see below), whose sum is σ = 11340000. Its totient is φ = 1455168.

The previous prime is 4450711. The next prime is 4450729. The reversal of 4450728 is 8270544.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4450695 and 4450704.

It is not an unprimeable number, because it can be changed into a prime (4450729) 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 7 ways as a sum of consecutive naturals, for example, 478 + ... + 3021.

It is an arithmetic number, because the mean of its divisors is an integer number (354375).

Almost surely, 2^4450728 is an apocalyptic number.

It is an amenable number.

4450728 is an abundant number, since it is smaller than the sum of its proper divisors (6889272).

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

4450728 is a wasteful number, since it uses less digits than its factorization.

4450728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 4450728 is about 2109.6748564649. The cubic root of 4450728 is about 164.4915847051.

The spelling of 4450728 in words is "four million, four hundred fifty thousand, seven hundred twenty-eight".