216994314 has 24 divisors (see below), whose sum is σ = 436927680. Its totient is φ = 71843632.

The previous prime is 216994303. The next prime is 216994343. The reversal of 216994314 is 413499612.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 557632 + ... + 558020.

It is an arithmetic number, because the mean of its divisors is an integer number (18205320).

Almost surely, 2^216994314 is an apocalyptic number.

216994314 is an abundant number, since it is smaller than the sum of its proper divisors (219933366).

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

216994314 is an equidigital number, since it uses as much as digits as its factorization.

216994314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 633 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 216994314 is about 14730.7268659764. The cubic root of 216994314 is about 600.9192520181.

The spelling of 216994314 in words is "two hundred sixteen million, nine hundred ninety-four thousand, three hundred fourteen".