16317428 has 24 divisors (see below), whose sum is σ = 30633120. Its totient is φ = 7581600.

The previous prime is 16317421. The next prime is 16317443. The reversal of 16317428 is 82471361.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16317394 and 16317403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16317421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2003 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1276380).

Almost surely, 2^16317428 is an apocalyptic number.

It is an amenable number.

16317428 is a deficient number, since it is larger than the sum of its proper divisors (14315692).

16317428 is a wasteful number, since it uses less digits than its factorization.

16317428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127 (or 4125 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 16317428 is about 4039.4836303666. The cubic root of 16317428 is about 253.6397024420.

Adding to 16317428 its reverse (82471361), we get a palindrome (98788789).

The spelling of 16317428 in words is "sixteen million, three hundred seventeen thousand, four hundred twenty-eight".