216450304 has 108 divisors (see below), whose sum is σ = 514973536. Its totient is φ = 88897536.

The previous prime is 216450301. The next prime is 216450317. The reversal of 216450304 is 403054612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216450301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4083942 + ... + 4083994.

Almost surely, 2^216450304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216450304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257486768).

216450304 is an abundant number, since it is smaller than the sum of its proper divisors (298523232).

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

216450304 is an frugal number, since it uses more digits than its factorization.

216450304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 216450304 is about 14712.2501338171. The cubic root of 216450304 is about 600.4166587403.

The spelling of 216450304 in words is "two hundred sixteen million, four hundred fifty thousand, three hundred four".