216966192 has 20 divisors (see below), whose sum is σ = 560496120. Its totient is φ = 72322048.

The previous prime is 216966181. The next prime is 216966193. The reversal of 216966192 is 291669612.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (216966193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260017 + ... + 2260112.

It is an arithmetic number, because the mean of its divisors is an integer number (28024806).

Almost surely, 2^216966192 is an apocalyptic number.

It is an amenable number.

216966192 is an abundant number, since it is smaller than the sum of its proper divisors (343529928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216966192 is a wasteful number, since it uses less digits than its factorization.

216966192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520140 (or 4520134 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 216966192 is about 14729.7722996657. The cubic root of 216966192 is about 600.8932916124.

The spelling of 216966192 in words is "two hundred sixteen million, nine hundred sixty-six thousand, one hundred ninety-two".