10281728 has 18 divisors (see below), whose sum is σ = 20523804. Its totient is φ = 5140736.

The previous prime is 10281727. The next prime is 10281731. The reversal of 10281728 is 82718201.

It is a self number, because there is not a number n which added to its sum of digits gives 10281728.

It is not an unprimeable number, because it can be changed into a prime (10281727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19826 + ... + 20337.

Almost surely, 2^10281728 is an apocalyptic number.

It is an amenable number.

10281728 is a deficient number, since it is larger than the sum of its proper divisors (10242076).

10281728 is an frugal number, since it uses more digits than its factorization.

10281728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40179 (or 40165 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 10281728 is about 3206.5133712492. The cubic root of 10281728 is about 217.4479762834.

Adding to 10281728 its reverse (82718201), we get a palindrome (92999929).

The spelling of 10281728 in words is "ten million, two hundred eighty-one thousand, seven hundred twenty-eight".