4319728 has 20 divisors (see below), whose sum is σ = 9565360. Its totient is φ = 1851264.

The previous prime is 4319687. The next prime is 4319729. The reversal of 4319728 is 8279134.

It is a junction number, because it is equal to n+sod(n) for n = 4319693 and 4319702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4319729) 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 3 ways as a sum of consecutive naturals, for example, 19173 + ... + 19396.

It is an arithmetic number, because the mean of its divisors is an integer number (478268).

Almost surely, 2^4319728 is an apocalyptic number.

It is an amenable number.

4319728 is an abundant number, since it is smaller than the sum of its proper divisors (5245632).

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

4319728 is a wasteful number, since it uses less digits than its factorization.

4319728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38584 (or 38578 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 4319728 is about 2078.3955350221. The cubic root of 4319728 is about 162.8616387684.

The spelling of 4319728 in words is "four million, three hundred nineteen thousand, seven hundred twenty-eight".