14057728 has 36 divisors (see below), whose sum is σ = 28421820. Its totient is φ = 6938624.

The previous prime is 14057713. The next prime is 14057731. The reversal of 14057728 is 82775041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 12730624 = 1152^2 + 3568^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14057693 and 14057702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22476 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (789495).

Almost surely, 2^14057728 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 14057728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14210910).

14057728 is an abundant number, since it is smaller than the sum of its proper divisors (14364092).

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

14057728 is an frugal number, since it uses more digits than its factorization.

14057728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 14057728 is about 3749.3636793461. The cubic root of 14057728 is about 241.3450404531.

The spelling of 14057728 in words is "fourteen million, fifty-seven thousand, seven hundred twenty-eight".