216243060 has 96 divisors (see below), whose sum is σ = 699414912. Its totient is φ = 49336320.

The previous prime is 216243037. The next prime is 216243089. The reversal of 216243060 is 60342612.

It is a super-2 number, since 2×216243060² = 93522121996327200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 216243060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1584 + ... + 20856.

It is an arithmetic number, because the mean of its divisors is an integer number (7285572).

Almost surely, 2^216243060 is an apocalyptic number.

216243060 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 216243060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349707456).

216243060 is an abundant number, since it is smaller than the sum of its proper divisors (483171852).

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

216243060 is a wasteful number, since it uses less digits than its factorization.

216243060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19313 (or 19311 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 216243060 is about 14705.2052008804. The cubic root of 216243060 is about 600.2249711916.

Adding to 216243060 its reverse (60342612), we get a palindrome (276585672).

The spelling of 216243060 in words is "two hundred sixteen million, two hundred forty-three thousand, sixty".