216768832 has 84 divisors (see below), whose sum is σ = 503671840. Its totient is φ = 90669312.

The previous prime is 216768817. The next prime is 216768869. The reversal of 216768832 is 238867612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1559419 + ... + 1559557.

Almost surely, 2^216768832 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 216768832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251835920).

216768832 is an abundant number, since it is smaller than the sum of its proper divisors (286903008).

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

216768832 is an equidigital number, since it uses as much as digits as its factorization.

216768832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 207 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 216768832 is about 14723.0714186952. The cubic root of 216768832 is about 600.7110385223.

The spelling of 216768832 in words is "two hundred sixteen million, seven hundred sixty-eight thousand, eight hundred thirty-two".