216220600 has 96 divisors (see below), whose sum is σ = 525859200. Its totient is φ = 82598400.

The previous prime is 216220597. The next prime is 216220601. The reversal of 216220600 is 6022612.

216220600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216220601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451161 + ... + 451639.

It is an arithmetic number, because the mean of its divisors is an integer number (5477700).

Almost surely, 2^216220600 is an apocalyptic number.

216220600 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 216220600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262929600).

216220600 is an abundant number, since it is smaller than the sum of its proper divisors (309638600).

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

216220600 is a wasteful number, since it uses less digits than its factorization.

216220600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 216220600 is about 14704.4415058852. The cubic root of 216220600 is about 600.2041897623.

The spelling of 216220600 in words is "two hundred sixteen million, two hundred twenty thousand, six hundred".