216053808 has 40 divisors (see below), whose sum is σ = 559022256. Its totient is φ = 71904000.

The previous prime is 216053779. The next prime is 216053839. The reversal of 216053808 is 808350612.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30438 + ... + 36858.

Almost surely, 2^216053808 is an apocalyptic number.

It is an amenable number.

216053808 is an abundant number, since it is smaller than the sum of its proper divisors (342968448).

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

216053808 is a wasteful number, since it uses less digits than its factorization.

216053808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133 (or 7127 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 216053808 is about 14698.7689280429. The cubic root of 216053808 is about 600.0498180857.

The spelling of 216053808 in words is "two hundred sixteen million, fifty-three thousand, eight hundred eight".