216424484 has 12 divisors (see below), whose sum is σ = 401021964. Its totient is φ = 101846784.

The previous prime is 216424471. The next prime is 216424561. The reversal of 216424484 is 484424612.

216424484 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 122722084 + 93702400 = 11078^2 + 9680^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1591289 + ... + 1591424.

It is an arithmetic number, because the mean of its divisors is an integer number (33418497).

Almost surely, 2^216424484 is an apocalyptic number.

It is an amenable number.

216424484 is a deficient number, since it is larger than the sum of its proper divisors (184597480).

216424484 is a wasteful number, since it uses less digits than its factorization.

216424484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182734 (or 3182732 counting only the distinct ones).

The product of its digits is 49152, while the sum is 35.

The square root of 216424484 is about 14711.3726076121. The cubic root of 216424484 is about 600.3927835531.

The spelling of 216424484 in words is "two hundred sixteen million, four hundred twenty-four thousand, four hundred eighty-four".