16240728 has 32 divisors (see below), whose sum is σ = 46402560. Its totient is φ = 4640160.

The previous prime is 16240723. The next prime is 16240751. The reversal of 16240728 is 82704261.

It is a super-2 number, since 2×16240728² = 527522491939968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16240695 and 16240704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16240723) 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 7 ways as a sum of consecutive naturals, for example, 48168 + ... + 48503.

It is an arithmetic number, because the mean of its divisors is an integer number (1450080).

Almost surely, 2^16240728 is an apocalyptic number.

It is an amenable number.

16240728 is an abundant number, since it is smaller than the sum of its proper divisors (30161832).

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

16240728 is a wasteful number, since it uses less digits than its factorization.

16240728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96687 (or 96683 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 16240728 is about 4029.9786599931. The cubic root of 16240728 is about 253.2416673589.

Adding to 16240728 its reverse (82704261), we get a palindrome (98944989).

The spelling of 16240728 in words is "sixteen million, two hundred forty thousand, seven hundred twenty-eight".