216702441 has 6 divisors (see below), whose sum is σ = 313014650. Its totient is φ = 144468288.

The previous prime is 216702403. The next prime is 216702461. The reversal of 216702441 is 144207612.

216702441 is a `hidden beast` number, since 216 + 7 + 0 + 2 + 441 = 666.

It can be written as a sum of positive squares in only one way, i.e., 181845225 + 34857216 = 13485^2 + 5904^2 .

It is not a de Polignac number, because 216702441 - 2¹⁸ = 216440297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216702461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12039016 + ... + 12039033.

Almost surely, 2^216702441 is an apocalyptic number.

It is an amenable number.

216702441 is a deficient number, since it is larger than the sum of its proper divisors (96312209).

216702441 is a wasteful number, since it uses less digits than its factorization.

216702441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24078055 (or 24078052 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 216702441 is about 14720.8165874044. The cubic root of 216702441 is about 600.6497045527.

The spelling of 216702441 in words is "two hundred sixteen million, seven hundred two thousand, four hundred forty-one".