216395338 has 8 divisors (see below), whose sum is σ = 324656640. Its totient is φ = 108176460.

The previous prime is 216395323. The next prime is 216395341. The reversal of 216395338 is 833593612.

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

It is a self number, because there is not a number n which added to its sum of digits gives 216395338.

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, 10743 + ... + 23413.

It is an arithmetic number, because the mean of its divisors is an integer number (40582080).

Almost surely, 2^216395338 is an apocalyptic number.

216395338 is a deficient number, since it is larger than the sum of its proper divisors (108261302).

216395338 is a wasteful number, since it uses less digits than its factorization.

216395338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21212.

The product of its digits is 116640, while the sum is 40.

The square root of 216395338 is about 14710.3819800847. The cubic root of 216395338 is about 600.3658306050.

The spelling of 216395338 in words is "two hundred sixteen million, three hundred ninety-five thousand, three hundred thirty-eight".