216022276 has 48 divisors (see below), whose sum is σ = 408648240. Its totient is φ = 99706880.

The previous prime is 216022273. The next prime is 216022277. The reversal of 216022276 is 672220612.

It can be written as a sum of positive squares in 8 ways, for example, as 2160900 + 213861376 = 1470^2 + 14624^2 .

It is not an unprimeable number, because it can be changed into a prime (216022273) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 251640 + ... + 252496.

It is an arithmetic number, because the mean of its divisors is an integer number (8513505).

Almost surely, 2^216022276 is an apocalyptic number.

It is an amenable number.

216022276 is a deficient number, since it is larger than the sum of its proper divisors (192625964).

216022276 is a wasteful number, since it uses less digits than its factorization.

216022276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 216022276 is about 14697.6962820709. The cubic root of 216022276 is about 600.0206252169.

Adding to 216022276 its reverse (672220612), we get a palindrome (888242888).

The spelling of 216022276 in words is "two hundred sixteen million, twenty-two thousand, two hundred seventy-six".