216014140 has 48 divisors (see below), whose sum is σ = 471637152. Its totient is φ = 83033856.

The previous prime is 216014111. The next prime is 216014159. The reversal of 216014140 is 41410612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59662 + ... + 63178.

It is an arithmetic number, because the mean of its divisors is an integer number (9825774).

Almost surely, 2^216014140 is an apocalyptic number.

216014140 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 216014140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235818576).

216014140 is an abundant number, since it is smaller than the sum of its proper divisors (255623012).

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

216014140 is a wasteful number, since it uses less digits than its factorization.

216014140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 216014140 is about 14697.4195013955. The cubic root of 216014140 is about 600.0130923069.

Adding to 216014140 its reverse (41410612), we get a palindrome (257424752).

The spelling of 216014140 in words is "two hundred sixteen million, fourteen thousand, one hundred forty".