10321728 has 28 divisors (see below), whose sum is σ = 27310080. Its totient is φ = 3440512.

The previous prime is 10321721. The next prime is 10321741. The reversal of 10321728 is 82712301.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 10321698 and 10321707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26688 + ... + 27071.

It is an arithmetic number, because the mean of its divisors is an integer number (975360).

Almost surely, 2^10321728 is an apocalyptic number.

It is an amenable number.

10321728 is an abundant number, since it is smaller than the sum of its proper divisors (16988352).

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

10321728 is an equidigital number, since it uses as much as digits as its factorization.

10321728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53774 (or 53764 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 10321728 is about 3212.7446210367. The cubic root of 10321728 is about 217.7295976839.

The spelling of 10321728 in words is "ten million, three hundred twenty-one thousand, seven hundred twenty-eight".