216344118 has 32 divisors (see below), whose sum is σ = 467078400. Its totient is φ = 66599456.

The previous prime is 216344111. The next prime is 216344123. The reversal of 216344118 is 811443612.

216344118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216344111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23028 + ... + 31031.

It is an arithmetic number, because the mean of its divisors is an integer number (14596200).

Almost surely, 2^216344118 is an apocalyptic number.

216344118 is an abundant number, since it is smaller than the sum of its proper divisors (250734282).

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

216344118 is a wasteful number, since it uses less digits than its factorization.

216344118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54116.

The product of its digits is 4608, while the sum is 30.

The square root of 216344118 is about 14708.6409297392. The cubic root of 216344118 is about 600.3184587213.

It can be divided in two parts, 21634 and 4118, that added together give a palindrome (25752).

The spelling of 216344118 in words is "two hundred sixteen million, three hundred forty-four thousand, one hundred eighteen".