216303360 has 288 divisors, whose sum is σ = 851612160. Its totient is φ = 45563904.

The previous prime is 216303349. The next prime is 216303361. The reversal of 216303360 is 63303612.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 216303360.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216303361) 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, 349131 + ... + 349749.

Almost surely, 2^216303360 is an apocalyptic number.

216303360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216303360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (425806080).

216303360 is an abundant number, since it is smaller than the sum of its proper divisors (635308800).

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

216303360 is a wasteful number, since it uses less digits than its factorization.

216303360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 216303360 is about 14707.2553523763. The cubic root of 216303360 is about 600.2807574938.

Adding to 216303360 its reverse (63303612), we get a palindrome (279606972).

The spelling of 216303360 in words is "two hundred sixteen million, three hundred three thousand, three hundred sixty".