216562332 has 96 divisors (see below), whose sum is σ = 603671040. Its totient is φ = 59132160.

The previous prime is 216562331. The next prime is 216562349. The reversal of 216562332 is 233265612.

It is a self number, because there is not a number n which added to its sum of digits gives 216562332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216562331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182782 + ... + 183962.

It is an arithmetic number, because the mean of its divisors is an integer number (6288240).

Almost surely, 2^216562332 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 216562332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301835520).

216562332 is an abundant number, since it is smaller than the sum of its proper divisors (387108708).

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

216562332 is a wasteful number, since it uses less digits than its factorization.

216562332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 216562332 is about 14716.0569447118. The cubic root of 216562332 is about 600.5202265879.

The spelling of 216562332 in words is "two hundred sixteen million, five hundred sixty-two thousand, three hundred thirty-two".