216179468 has 12 divisors (see below), whose sum is σ = 378668472. Its totient is φ = 107988480.

The previous prime is 216179441. The next prime is 216179477. The reversal of 216179468 is 864971612.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20405 + ... + 29132.

It is an arithmetic number, because the mean of its divisors is an integer number (31555706).

Almost surely, 2^216179468 is an apocalyptic number.

It is an amenable number.

216179468 is a deficient number, since it is larger than the sum of its proper divisors (162489004).

216179468 is a wasteful number, since it uses less digits than its factorization.

216179468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50632 (or 50630 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The square root of 216179468 is about 14703.0428143293. The cubic root of 216179468 is about 600.1661280723.

The spelling of 216179468 in words is "two hundred sixteen million, one hundred seventy-nine thousand, four hundred sixty-eight".