216413882 has 8 divisors (see below), whose sum is σ = 325102356. Its totient is φ = 108046432.

The previous prime is 216413881. The next prime is 216413929. The reversal of 216413882 is 288314612.

It can be written as a sum of positive squares in 2 ways, for example, as 216413521 + 361 = 14711^2 + 19^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (216413881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78563 + ... + 81270.

Almost surely, 2^216413882 is an apocalyptic number.

216413882 is a deficient number, since it is larger than the sum of its proper divisors (108688474).

216413882 is a wasteful number, since it uses less digits than its factorization.

216413882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160512.

The product of its digits is 18432, while the sum is 35.

The square root of 216413882 is about 14711.0122697250. The cubic root of 216413882 is about 600.3829795665.

The spelling of 216413882 in words is "two hundred sixteen million, four hundred thirteen thousand, eight hundred eighty-two".