16321002 has 16 divisors (see below), whose sum is σ = 32780352. Its totient is φ = 5417280.

The previous prime is 16321001. The next prime is 16321009. The reversal of 16321002 is 20012361.

It is not an unprimeable number, because it can be changed into a prime (16321001) 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, 4198 + ... + 7089.

It is an arithmetic number, because the mean of its divisors is an integer number (2048772).

Almost surely, 2^16321002 is an apocalyptic number.

16321002 is an abundant number, since it is smaller than the sum of its proper divisors (16459350).

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

16321002 is a wasteful number, since it uses less digits than its factorization.

16321002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11533.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 16321002 is about 4039.9259894211. The cubic root of 16321002 is about 253.6582192925.

Adding to 16321002 its reverse (20012361), we get a palindrome (36333363).

The spelling of 16321002 in words is "sixteen million, three hundred twenty-one thousand, two".