216318704 has 40 divisors (see below), whose sum is σ = 480826368. Its totient is φ = 92352960.

The previous prime is 216318689. The next prime is 216318709. The reversal of 216318704 is 407813612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216318709) 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 7 ways as a sum of consecutive naturals, for example, 26789 + ... + 33915.

Almost surely, 2^216318704 is an apocalyptic number.

It is an amenable number.

216318704 is an abundant number, since it is smaller than the sum of its proper divisors (264507664).

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

216318704 is a wasteful number, since it uses less digits than its factorization.

216318704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413 (or 7407 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 216318704 is about 14707.7769904224. The cubic root of 216318704 is about 600.2949512788.

The spelling of 216318704 in words is "two hundred sixteen million, three hundred eighteen thousand, seven hundred four".