216734304 has 24 divisors (see below), whose sum is σ = 568927800. Its totient is φ = 72244736.

The previous prime is 216734293. The next prime is 216734321. The reversal of 216734304 is 403437612.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1128729 + ... + 1128920.

It is an arithmetic number, because the mean of its divisors is an integer number (23705325).

Almost surely, 2^216734304 is an apocalyptic number.

216734304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

216734304 is an abundant number, since it is smaller than the sum of its proper divisors (352193496).

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

216734304 is a wasteful number, since it uses less digits than its factorization.

216734304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257662 (or 2257654 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 216734304 is about 14721.8987905773. The cubic root of 216734304 is about 600.6791420978.

The spelling of 216734304 in words is "two hundred sixteen million, seven hundred thirty-four thousand, three hundred four".