216844094 has 8 divisors (see below), whose sum is σ = 331403400. Its totient is φ = 106376296.

The previous prime is 216844079. The next prime is 216844097. The reversal of 216844094 is 490448612.

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

It is a super-2 number, since 2×216844094² = 94042722205361672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216844097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022744 + ... + 1022955.

It is an arithmetic number, because the mean of its divisors is an integer number (41425425).

Almost surely, 2^216844094 is an apocalyptic number.

216844094 is a deficient number, since it is larger than the sum of its proper divisors (114559306).

216844094 is a wasteful number, since it uses less digits than its factorization.

216844094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045754.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 216844094 is about 14725.6271173760. The cubic root of 216844094 is about 600.7805526408.

The spelling of 216844094 in words is "two hundred sixteen million, eight hundred forty-four thousand, ninety-four".