216214350 has 96 divisors (see below), whose sum is σ = 595140480. Its totient is φ = 51504000.

The previous prime is 216214309. The next prime is 216214351. The reversal of 216214350 is 53412612.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 216214350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216214351) 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, 96240 + ... + 98460.

It is an arithmetic number, because the mean of its divisors is an integer number (6199380).

Almost surely, 2^216214350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216214350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297570240).

216214350 is an abundant number, since it is smaller than the sum of its proper divisors (378926130).

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

216214350 is a wasteful number, since it uses less digits than its factorization.

216214350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306 (or 2301 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 216214350 is about 14704.2289835272. The cubic root of 216214350 is about 600.1984066064.

Adding to 216214350 its reverse (53412612), we get a palindrome (269626962).

The spelling of 216214350 in words is "two hundred sixteen million, two hundred fourteen thousand, three hundred fifty".