216226850 has 24 divisors (see below), whose sum is σ = 459637248. Its totient is φ = 74134800.

The previous prime is 216226849. The next prime is 216226861. The reversal of 216226850 is 58622612.

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 11 ways as a sum of consecutive naturals, for example, 308546 + ... + 309245.

It is an arithmetic number, because the mean of its divisors is an integer number (19151552).

Almost surely, 2^216226850 is an apocalyptic number.

216226850 is an abundant number, since it is smaller than the sum of its proper divisors (243410398).

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

216226850 is a wasteful number, since it uses less digits than its factorization.

216226850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617810 (or 617805 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 216226850 is about 14704.6540251718. The cubic root of 216226850 is about 600.2099728068.

The spelling of 216226850 in words is "two hundred sixteen million, two hundred twenty-six thousand, eight hundred fifty".