216234752 has 54 divisors (see below), whose sum is σ = 440749764. Its totient is φ = 105876480.

The previous prime is 216234751. The next prime is 216234761. The reversal of 216234752 is 257432612.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (216234751) 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 5 ways as a sum of consecutive naturals, for example, 952463 + ... + 952689.

Almost surely, 2^216234752 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 216234752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220374882).

216234752 is an abundant number, since it is smaller than the sum of its proper divisors (224515012).

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

216234752 is an frugal number, since it uses more digits than its factorization.

216234752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 290 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 216234752 is about 14704.9227131597. The cubic root of 216234752 is about 600.2172842660.

The spelling of 216234752 in words is "two hundred sixteen million, two hundred thirty-four thousand, seven hundred fifty-two".