216946336 has 24 divisors (see below), whose sum is σ = 427623840. Its totient is φ = 108343488.

The previous prime is 216946321. The next prime is 216946391. The reversal of 216946336 is 633649612.

216946336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 26725 + ... + 33883.

It is an arithmetic number, because the mean of its divisors is an integer number (17817660).

Almost surely, 2^216946336 is an apocalyptic number.

It is an amenable number.

216946336 is a deficient number, since it is larger than the sum of its proper divisors (210677504).

216946336 is an equidigital number, since it uses as much as digits as its factorization.

216946336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116 (or 8108 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

The square root of 216946336 is about 14729.0982751830. The cubic root of 216946336 is about 600.8749604904.

The spelling of 216946336 in words is "two hundred sixteen million, nine hundred forty-six thousand, three hundred thirty-six".