216234120 has 64 divisors (see below), whose sum is σ = 650286720. Its totient is φ = 57521664.

The previous prime is 216234119. The next prime is 216234127. The reversal of 216234120 is 21432612.

It is not an unprimeable number, because it can be changed into a prime (216234127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52869 + ... + 56811.

It is an arithmetic number, because the mean of its divisors is an integer number (10160730).

Almost surely, 2^216234120 is an apocalyptic number.

216234120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216234120 is an abundant number, since it is smaller than the sum of its proper divisors (434052600).

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

216234120 is a wasteful number, since it uses less digits than its factorization.

216234120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414 (or 4410 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 216234120 is about 14704.9012237417. The cubic root of 216234120 is about 600.2166995039.

Adding to 216234120 its reverse (21432612), we get a palindrome (237666732).

The spelling of 216234120 in words is "two hundred sixteen million, two hundred thirty-four thousand, one hundred twenty".