216480286 has 8 divisors (see below), whose sum is σ = 354240504. Its totient is φ = 98400120.

The previous prime is 216480233. The next prime is 216480293. The reversal of 216480286 is 682084612.

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

It is a congruent number.

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, 4919985 + ... + 4920028.

It is an arithmetic number, because the mean of its divisors is an integer number (44280063).

Almost surely, 2^216480286 is an apocalyptic number.

216480286 is a deficient number, since it is larger than the sum of its proper divisors (137760218).

216480286 is a wasteful number, since it uses less digits than its factorization.

216480286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9840026.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 216480286 is about 14713.2690453210. The cubic root of 216480286 is about 600.4443800553. Note that the first 3 decimals are identical.

The spelling of 216480286 in words is "two hundred sixteen million, four hundred eighty thousand, two hundred eighty-six".