216325260 has 144 divisors (see below), whose sum is σ = 707266560. Its totient is φ = 53343360.

The previous prime is 216325247. The next prime is 216325261. The reversal of 216325260 is 62523612.

216325260 is a `hidden beast` number, since 2 + 1 + 632 + 5 + 26 + 0 = 666.

216325260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×216325260² = 93593236228135200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216325261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146325 + ... + 147795.

Almost surely, 2^216325260 is an apocalyptic number.

216325260 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 216325260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353633280).

216325260 is an abundant number, since it is smaller than the sum of its proper divisors (490941300).

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

216325260 is a wasteful number, since it uses less digits than its factorization.

216325260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1543 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 216325260 is about 14707.9998640196. Note that the first 3 decimals coincide. The cubic root of 216325260 is about 600.3010156241.

Adding to 216325260 its reverse (62523612), we get a palindrome (278848872).

The spelling of 216325260 in words is "two hundred sixteen million, three hundred twenty-five thousand, two hundred sixty".