216045286 has 16 divisors (see below), whose sum is σ = 330157440. Its totient is φ = 106001280.

The previous prime is 216045283. The next prime is 216045307. The reversal of 216045286 is 682540612.

216045286 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 (216045283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56590 + ... + 60286.

It is an arithmetic number, because the mean of its divisors is an integer number (20634840).

Almost surely, 2^216045286 is an apocalyptic number.

216045286 is a deficient number, since it is larger than the sum of its proper divisors (114112154).

216045286 is a wasteful number, since it uses less digits than its factorization.

216045286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 216045286 is about 14698.4790369616. The cubic root of 216045286 is about 600.0419285514.

Adding to 216045286 its reverse (682540612), we get a palindrome (898585898).

The spelling of 216045286 in words is "two hundred sixteen million, forty-five thousand, two hundred eighty-six".