32345216 has 32 divisors (see below), whose sum is σ = 65545200. Its totient is φ = 15894784.

The previous prime is 32345197. The next prime is 32345221. The reversal of 32345216 is 61254323.

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

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5411 + ... + 9693.

Almost surely, 2^32345216 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 32345216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32772600).

32345216 is an abundant number, since it is smaller than the sum of its proper divisors (33199984).

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

32345216 is an equidigital number, since it uses as much as digits as its factorization.

32345216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356 (or 4344 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 32345216 is about 5687.2854684814. The cubic root of 32345216 is about 318.6177882545.

Adding to 32345216 its reverse (61254323), we get a palindrome (93599539).

The spelling of 32345216 in words is "thirty-two million, three hundred forty-five thousand, two hundred sixteen".