216230344 has 32 divisors (see below), whose sum is σ = 468309600. Its totient is φ = 92504320.

The previous prime is 216230341. The next prime is 216230353. The reversal of 216230344 is 443032612.

216230344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (216230341) 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, 70774 + ... + 73765.

It is an arithmetic number, because the mean of its divisors is an integer number (14634675).

Almost surely, 2^216230344 is an apocalyptic number.

It is an amenable number.

216230344 is an abundant number, since it is smaller than the sum of its proper divisors (252079256).

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

216230344 is a wasteful number, since it uses less digits than its factorization.

216230344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144573 (or 144569 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 216230344 is about 14704.7728306152. The cubic root of 216230344 is about 600.2132057114.

Adding to 216230344 its reverse (443032612), we get a palindrome (659262956).

The spelling of 216230344 in words is "two hundred sixteen million, two hundred thirty thousand, three hundred forty-four".