16351232 has 32 divisors (see below), whose sum is σ = 32767500. Its totient is φ = 8159232.

The previous prime is 16351217. The next prime is 16351243. The reversal of 16351232 is 23215361.

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 8 and base 16.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16351198 and 16351207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32519 + ... + 33017.

Almost surely, 2^16351232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16351232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16383750).

16351232 is an abundant number, since it is smaller than the sum of its proper divisors (16416268).

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

16351232 is an frugal number, since it uses more digits than its factorization.

16351232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 501 counting only the distinct ones).

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

The square root of 16351232 is about 4043.6656637264. The cubic root of 16351232 is about 253.8147325286.

Adding to 16351232 its reverse (23215361), we get a palindrome (39566593).

The spelling of 16351232 in words is "sixteen million, three hundred fifty-one thousand, two hundred thirty-two".