16321532 has 36 divisors (see below), whose sum is σ = 30723840. Its totient is φ = 7584192.

The previous prime is 16321507. The next prime is 16321537. The reversal of 16321532 is 23512361.

It is a junction number, because it is equal to n+sod(n) for n = 16321498 and 16321507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16321537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128453 + ... + 128579.

It is an arithmetic number, because the mean of its divisors is an integer number (853440).

Almost surely, 2^16321532 is an apocalyptic number.

It is an amenable number.

16321532 is a deficient number, since it is larger than the sum of its proper divisors (14402308).

16321532 is a wasteful number, since it uses less digits than its factorization.

16321532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 237 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 16321532 is about 4039.9915841497. The cubic root of 16321532 is about 253.6609649858.

Adding to 16321532 its reverse (23512361), we get a palindrome (39833893).

The spelling of 16321532 in words is "sixteen million, three hundred twenty-one thousand, five hundred thirty-two".