216078822 has 24 divisors (see below), whose sum is σ = 468958464. Its totient is φ = 71905104.

The previous prime is 216078817. The next prime is 216078829. The reversal of 216078822 is 228870612.

It is a happy number.

216078822 is a `hidden beast` number, since 21 + 607 + 8 + 8 + 22 = 666.

216078822 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 (216078829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1243 + ... + 20825.

It is an arithmetic number, because the mean of its divisors is an integer number (19539936).

Almost surely, 2^216078822 is an apocalyptic number.

216078822 is an abundant number, since it is smaller than the sum of its proper divisors (252879642).

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

216078822 is a wasteful number, since it uses less digits than its factorization.

216078822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204 (or 20201 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 216078822 is about 14699.6197910014. The cubic root of 216078822 is about 600.0729744575.

The spelling of 216078822 in words is "two hundred sixteen million, seventy-eight thousand, eight hundred twenty-two".