16731028 has 24 divisors (see below), whose sum is σ = 31610880. Its totient is φ = 7724640.

The previous prime is 16731023. The next prime is 16731047. The reversal of 16731028 is 82013761.

It is a junction number, because it is equal to n+sod(n) for n = 16730987 and 16731005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16731023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (1317120).

Almost surely, 2^16731028 is an apocalyptic number.

It is an amenable number.

16731028 is a deficient number, since it is larger than the sum of its proper divisors (14879852).

16731028 is a wasteful number, since it uses less digits than its factorization.

16731028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327 (or 6325 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 16731028 is about 4090.3579305484. The cubic root of 16731028 is about 255.7648597695.

Adding to 16731028 its reverse (82013761), we get a palindrome (98744789).

It can be divided in two parts, 1673 and 1028, that added together give a triangular number (2701 = T₇₃).

The spelling of 16731028 in words is "sixteen million, seven hundred thirty-one thousand, twenty-eight".