216424706 has 32 divisors (see below), whose sum is σ = 352358400. Its totient is φ = 99377280.

The previous prime is 216424699. The next prime is 216424711. The reversal of 216424706 is 607424612.

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 15 ways as a sum of consecutive naturals, for example, 168575 + ... + 169853.

It is an arithmetic number, because the mean of its divisors is an integer number (11011200).

Almost surely, 2^216424706 is an apocalyptic number.

216424706 is a deficient number, since it is larger than the sum of its proper divisors (135933694).

216424706 is a wasteful number, since it uses less digits than its factorization.

216424706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 216424706 is about 14711.3801527933. The cubic root of 216424706 is about 600.3929888397.

The spelling of 216424706 in words is "two hundred sixteen million, four hundred twenty-four thousand, seven hundred six".