216441232 has 40 divisors (see below), whose sum is σ = 489056000. Its totient is φ = 92758176.

The previous prime is 216441227. The next prime is 216441233. The reversal of 216441232 is 232144612.

It is a happy number.

216441232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 216441197 and 216441206.

It is not an unprimeable number, because it can be changed into a prime (216441233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14232 + ... + 25207.

It is an arithmetic number, because the mean of its divisors is an integer number (12226400).

Almost surely, 2^216441232 is an apocalyptic number.

It is an amenable number.

216441232 is an abundant number, since it is smaller than the sum of its proper divisors (272614768).

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

216441232 is an equidigital number, since it uses as much as digits as its factorization.

216441232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39468 (or 39448 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 216441232 is about 14711.9418160894. The cubic root of 216441232 is about 600.4082702774.

Adding to 216441232 its reverse (232144612), we get a palindrome (448585844).

The spelling of 216441232 in words is "two hundred sixteen million, four hundred forty-one thousand, two hundred thirty-two".