216480234 has 16 divisors (see below), whose sum is σ = 433200672. Its totient is φ = 72120048.

The previous prime is 216480233. The next prime is 216480293. The reversal of 216480234 is 432084612.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216480233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3012 + ... + 21024.

It is an arithmetic number, because the mean of its divisors is an integer number (27075042).

Almost surely, 2^216480234 is an apocalyptic number.

216480234 is an abundant number, since it is smaller than the sum of its proper divisors (216720438).

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

216480234 is a wasteful number, since it uses less digits than its factorization.

216480234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20021.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 216480234 is about 14713.2672782085. The cubic root of 216480234 is about 600.4443319784. Note that the first 3 decimals are identical.

The spelling of 216480234 in words is "two hundred sixteen million, four hundred eighty thousand, two hundred thirty-four".